Sacrosanct
Legend
I thought that Champion was widely considered one of the weakest choices because crits aren't powerful and remarkable athlete is anything but. Maybe that's just D&D players in my area thinking that. As for the second point, I kinda mean the class itself. Anyone can take those feats, but personally all those concepts you've put forth I would feel happier playing as a Rogue, or a Ranger, or a Paladin, or a "mountain dwarf" abjurer wizard, with maybe a 1-3 level dip in Fighter if I really need Battlemaster features or something. Those would allow me to more effectively play the role since they have better mechanics to back up the fiction.
I think I need to put in my sig: "Two EXTRA feats", because that's important. Yes, every class gets access to feats. But fighters can add that extra versatility (and it's a lot) while still being able to do just as many ability bumps or feats as every other class.
I said this earlier and no one ever replied. If it was hard baked into the fighter class that at 6th level they get any two cantrips and a first level spell, and at 12th level they can cast any ritual spell as a ritual, would people still say the fighter class can't do anything outside of combat? Of course not.
It's like people are punishing the design team for giving the fighter more choice, and that seems really odd to me.