But the situation is more off.
There are players who come across as demanding "low magic" and refuse to allow their Fighters to have nice things ... but then try to sabotage the Wizards because they do have nice things.
Thought B
In the multi-player format EDH/Commander in MtG, the self-sorting of players by desired power level is a huge thing. Among groups that get along, the ethos seems to be that a rough consensus power level of the decks is agreed on and the goal is to win your fair share of games with a deck you enjoy. (Ok, win slightly more than your fair share).
So if there are four players in your regular group and you are winning 1/2 or more of the games, you should probably tone it down as you seem to have misread the consensus power level. If there isn't someone dominating, and you hardly win, then you should probably increase your power level a bit so that it actually functions as a 4 player game (some things can get thrown off if one of the players might as well not be there). [The exception here is competitive, where your goal is to stomp everyone else into the ground.]
If the agreed on power level is competitive, then there are certain cards that should probably be banned or the game is degenerate and most people hate it. If the agreed on power level is more casual, then those same cards might not be a problem because they don't have all the things that go with them that break them - but there might be other cards that are too strong and aren't fun at that level. So some different rules are needed depending on the level that is being aimed at.
It wonder if D&D is a bit that way too. There is a bunch of motivating literature/movies/games/shows that might have a sweet spot of tier II and low III. And there is a bunch that might have a sweet spot of upper III or IV. If the DM and all the players but one are aiming for one of those tiers, it feels like the one off person might be the one to readjust if their vision just doesn't fit. And it's possible what the group is aiming at might just need some different options in the rules than what some other group needs.
In MtG, one of the things that happens is new sets of cards come out. And if WotC misjudges the power level of those sets it can warp what everyone was doing. I mean, sure the groups could just self-adjust like they always have, but everyone wants to play with the brand new thing. Especially if it is apparently designed to be for EDH/Commander. I wonder if big changes to D&D core rule books have a similar affect. They can really warp what folks were playing, and sure they could just say no... but who likes to say no to what is in the core rule books?