I've always thought "Fighters can use ANY weapon and ANY armor" was overrated because, let's be honest, in most 1E games you'd be wearing the heaviest armor you can afford, and if you're proficient in a sword, a bow (not a crossbow, because 1E/2E crossbows were worthless), and a dagger you're probably set for the entire campaign. Yeah, you might be frustrated if you somehow stumble across a guisarme-voulge +3 and can't use it, but how likely is that to ever happen? I certainly don't remember it ever happening during my 1E days.
I'm also happy the game has moved away from fighters being Magic Loot: The Class. I look back at the fighters in 1E adventures, dripping with magic armor, magic shields, multiple magic weapons, magic rings, magic helms, magic cloaks, etc., and it just seems kind of silly now. If you have only one or two magic items, they feel a lot more special than if you're coated with magic down to your underwear.