Spoilered Echoes replies
I will agree that the Swamps slow down your progress a lot but it's really only noticeable in two maps(that are literally) the same though the second time it's actually used for a purpose.
And while the Peg sisters have way more Movement in certain maps, they still don't make the others fall behind unless you grind them because the two maps where Desert tiles are even noticeable(Desert Fortress and North/South) have way too many units that can take them out if ganged up on or outright ORKO so rushing with them is hardly an option there. They will only outpace the others in the first Swamp map because lol @ them trying to fight Mogalls or Guardians.
Fair enough on the early desert maps as the Pegasus Knights are pretty squishy at those points, though due to the Exp fountain and being able to get first dibs on certain enemies, you can feasibly get Palla and Catria promoted before you get to Mila's Temple. After that point, flight + Banish makes them very useful assets in most of the upcoming maps afterwards.
Hinoka's is the exception, really. Maybe in Normal it's possible but definitely not in Hard and above.
Hinoka's flier skip has been done in Lunatic IIRC, at the very least it's doable on Hard.
Try to change the strategy in Ch7 and the Faceless will kill someone, Ch8 has only one path if you want all the houses, Ch10 needs you to plug the same chokepoints with the same units, Break the Pots will punish you for breaking the pots, Ch22 made me claustrophobic, Ch23 has only one path possible and don't get me started on Ch25. I don't think this is necessarily bad(it makes the maps be more of a puzzle) but it does kill the replay value a lot.
-I'll give you Ch7 since it's basically just 'hold these guys off until most of them are dead', which is pretty simple and doesn't require a lot of strategy.
-Chapter 10 you can KO Takumi.
-Chapter 12 only punishes you if you just break them at random, if you strategically plan out which pots to break and when, it's easy to work with (and I think there's a telltale sign for which one gives a negative status).
-Chapter 22 is pretty constrictive, I'll concede that.
-Fair enough on 23, though you can change up a couple minor things like skipping Hinata.
-Chapter 25 is a mixed bag as technically there are two options to tackle it, but on Lunatic one of the options becomes very difficult and thus needs planning ahead. So it's less that you're forced to do it one way and more that if you want to play a certain way you have to think it through.
Granted, some of these require more planning then in Echoes (Chapter 25 especially) and I wouldn't say there's anything like Warp/Rescue Skips of course, but at the same time you're not restricted to one exact thing for every single chapter you come across.
Using it as an example: if Nuibaba's Abode was in Conquest(with the same enemies and weapons), it would definitely be **** because you'd have to make a long detour as your only option and no way to safely kill the enemy units without getting hit by Nuibaba or burning a lot of Rescue staves.
Which if you think about it, does more to highlight the problems with Nuibaba's map rather then Conquest's map design. If you remove Warp as an option, then the map becomes a slog as you can't cheese it at all, you either have to make a slow climb up the front or go around the back and either option has drawbacks to its playability.
It's just that there really isn't a map where you could change the objective to defemd or escape. They surely COULD have added a new map as we got some but they were mostly added for story purposes(except the Th. Shrine one, that's just to not make the ending of it feel so abrupt). I would surely have loved an Escape chapter but I don't feel like Echoes really needed one.
I think a couple could've been retooled or added with those objectives, particularly defense since they can use chapters like that to emphasize the strength of Rigel's army. It's not necessary of course, but it could've provided a couple breaks from the norm in terms of gameplay and maybe story.
I haven't really heard many actual complaints about the story outside of Celica believing Papa Smurf way too much(though I have issues with Berkut and Fernand myself). The most I see are them wasting potentially great villains like Desaix and Grieth or NPCs like Irma and Halcyon
There have been a few other good points brought up about the plot over at Serenes (Nekoknight recently posted a review on that). Some I do think are overly critical, but other complaints do exist.
I will agree that I have this same issue(that Berkut and Fernand should have shown some of their virtues BEFORE dying.
You only really see their good side with the Memory Prisms you get after killing them and when they are dying.
They were good but... I'd like to have seen that and sympathized for them before having Alm Double Lion their *****, it would have made me feel sad for seeing Clive lose a dear friend and make me understand why Rinea loves him so much when literally every scene with her has Berkut yelling at her. Except the dancing cutscene but he just looked really smug through the whole thing.
Agreed, especially with the DLC in mind for Fernand since he's actually very likeable in the Memory Prisms. They should've carried over some of those virtues to the main game rather then leaving him a classist jerk for almost the entire campaign