I disagree strongly. FIDE are at best stick-in-the mud organization that refuses to modernize unless forced, and more often outright corrupt. Their reaction to the
Agon Limited fiasco was to “scale back” their relationship with Agon/World Chess starting in 2020, keeping the money funnel going rather than actually severing ties when caught with their hand in the cookie jar.
Garry Kasparov splitting from FIDE is one of the only times we've seen any positive motion from them. Recall that Kasparov's last opponent in a FIDE world championship, Nigel Short, agreed with Kasparov's criticisms: by rule, Kasparov, FIDE, and his challenger were all supposed to have equal input on the format, location, and rules around their match. Instead, FIDE unilaterally announced a time and place for things. That improved for a time after the Kramnik reunification, but it's gotten back to the point where FIDE things they're the ones running the game.
Remember, the world championship is supposed to be an evaluation of the best player in the world, and it's traditionally passed along when the current title holder arranges matches with a challenger. FIDE's role is supposed to be to help facilitate such challenges to the title holder and help them negotiate the playing format with their challenger, not to create a competing tournament to crown a victor if they fail in those negotiations. The legitimacy of the title is in the belief of the public that it represents the strongest player, and the FIDE titles from the 1990s are rightly considered a joke and an embarrassment to FIDE.
If they're so inept at their mission of facilitating matches with the title holder that he walks away while still actively playing tournament chess, then they shouldn't be calling a match without him the world championship. And if they're not listening to Magnus' input when he's supposed to be an equal party to setting the rules of the challenge (along with his challenger), he
should walk away.