I don't know,
might have a problem with that. Jokes aside, I feel like a hand throwing the peace sign feels a bit too generic. It's not really something I associate with Rayman specifically you know? Plenty of characters use the peace sign and it's extremely common both as an emoji/real world use.
I'm also in favor of treating the Rabbids as their own thing. Sure they got their start with Rayman and technically share a universe (at least I think that's still the case?) But it spun off into it's own series ages ago. A silhouette of a Rabbid works great for the Rabbids series but it's ill fitting as a means of representing the whole Rayman franchise. They're emblematic of a particular era but otherwise completely absent from both the series origin/classic titles and the modern UbiArt games.
It's very nit picky but I kinda have the same problem with Mega Man and Persona tbh. The gear makes enough sense because machines/robots but I still feel it's too generic. Understanbly there aren't a lot of choices for reoccurring symbols or power ups so I get why they went with it. All I can think of are E Tanks or Dr. Wily's own symbol. Outside of those I still feel like Mega Man's helmet could have worked or maybe a Mettaur since they appear throughout the whole franchise not just Classic.
Persona is the opposite, I feel like it's too specific to 5. Yes that is the main game being represented and the Phantom Thieves logo is a great fit for a symbol of P5, but if it's supposed to be Persona as a whole then it just doesn't work. Again, it's very nit picky but we do technically have content from other Persona games and if the series content gets expanded on in the future then it's going to be even more of an oddity.