Persona 5 and Dragon Quest XI are full of dumb anime cliches, angsty teenagers, and bloat, that didn't stop them from selling like hotcakes. You'd have to explain in detail where you think the disconnect is between these games and the FF franchise.
Personally, I think Final Fantasy has more of an identity problem. Every title is different so you don't know what to expect. The gameplay is standard action stuff you've played a million times already, and chances are another game did it better. The writing ranges from magnificent to grossly uninspired. But there's this weird disconnect I've found in the tone since they merged with Enix, from games X to the present. It's like the story is taking itself super-serious but then also being weirdly goofy. I don't know how to describe it, it feels out of place. Like Persona 5 is full of mature themes but also comedy, yet somehow manages to be tonally consistent.
No game better encapsulates "identity crisis" than the FFVII trilogy either. Sometimes it's pure, perfect nostalgia and other times I don't know what the fuck I'm playing. And I don't mean that in a positive way, either.