NO. MORE. FIRE. EMBLEM.
I know there no rep limits theoretically, but FE should not have more reps or (as many) than Mario or Zelda. Fire Emblem pushing has gotten out of hand. There's promoting it and there is cramming it down people's throats and FE is entering "Cram" territory
The problem is that FE has many good/important characters to be used. There's a point in Mario and Zelda where people are grasping for some one-off really bottom of the barrel stuff.
You've got core characters like Mario/Peach/Bowser and Link/Zelda/Ganondorf and then some characters like Sheik or Rosalina. That's fine, buts there's a point where it's simply grasping at any character of those franchises even if they just play an insignificant role in some spinoff game.
Also, the FE roster isn't getting crammed down our throats. The base game had 4 reps, compared to Mario's 7 (already reaching questionable options like Bowser Jr.), Zelda's 5 (with semi-clones like toon-link and Ganondorf), and Pokemon's 5. That's pretty balanced, considering now Nintendo considers FE a flagship franchise and has had a massive spike in popularity for a franchise long neglected.
The DLC never "stole" any spots from potential newcomers. Corrin was promotional. Roy was literally fanservice to Smash fans. Plus, if they had ideas for a new Mario/Zelda rep, it would've been in the base game. There wasn't anything recent at that point to pull from or anything old obviously worth putting in in the first place.
Smash "cramming" something down people's throat could be used for anything. "I personally don't care for Pokemon, with all of these reps, they're totally cramming it down my throat." The game at this point in its life is meant for Nintendo's All-Stars but also to bring lesser known franchises to the spotlight, like Earthbound, Kid Icarus, Star Fox, F-Zero, Pikmin, Xenoblade, etc. Fire Emblem is just something that is in both realms of being a decades-old first-party IP and something that should take advantage of exposure like Smash.
I can agree, the current roster sucks. But not because the franchise is bad or not worthy. It's bad because it is filled with swordsman, lords, and self-insert avatar characters. It's bad because FE can rep so much more than this that isn't realized in Smash yet.