I'm not really getting what you're trying to say in the first paragraph. That because they release games slower they can't be redeemed as well as Capcom? I'm confused.
You can't just dismiss id as if they're a totally different entity from Bethesda. They are a BIG part of the infrastructure of that company now. Hell, a lot of Bethesda's headliner games are id. Doom Eternal, Wolfenstein, Rage 2, all id properties that without Bethesda probably wouldn't have seen the impact they have today. They flourish BECAUSE of Bethesda. And, absolutely, Machine Games the makers of Wolfenstein now are really good The Old Blood, The New Order, and The New Colossus are all stellar titles. And that's just id. Bethesda is also responsible for the getting Arkane Studios on the map with the Dishonored games, gave Tango Gameworks a home so we could get The Evil Within, and have had critically acclaimed games back to back to back with Morrowind, Oblivion, Fallout 3, Skyrim, Fallout: New Vegas, and (even if most people don't agree) Fallout 4. Cricifying them for what happened with 76 is kind of jumping the gun. The game was a trainwreck but treating them in the same way as most treat EA is degrading. Especially when EA does worse, far more often. Not trying to come off as a white knight or something but Fallout 76 was Bethesda's first BIG misstep and people blew it WAAAAY out of proportion.
Difference is that Captain Falcon and Ness's games were actually incredibly popular at the time and thus warranted it. A lot of people don't know but Super Mario RPG was considered a disappointment in sales.
What he does and doesn't consider a Retro rep can only be speculated. Especially since there really isn't a such thing. It's a made up rule that there had to be a Retro rep in every smash game and yet Ultimate didn't get one. Was it a thing for Melee? Yeah, Sakurai confirmed that to be the case because of him saying he wanted someone from the NES and then G&W was just his wacky character he always adds like ROB.
I think Geno will happen but I heavily doubt he'll be labeled as a Retro rep. If anything he'll be seen as K. Rool and Ridley were seen. A fan favorite finally making it in. Geno doesn't, at all, fit what has been typically seen as Sakurai's retro reps. Far from it.