I think you'd have to be seriously freaking gullible to actually fall for this one, there is absolutely no way that sqenix would genuinely try to shut down the cosmetic modding unless they for some reason decided to make their own framework built directly into the game for this (this would be based as heck but no way it's happening). They would just kill off the game overnight if they somehow pulled off nuking mods, mods are simply too entrenched into the game and the culture around it. The age verification popup shitpost was actually more believable than this one and it was a very obvious one to begin with.
On another note, I really need to start making notes of gameplay goals I want to pursue, if anyone's interested in running any content with me feel free to let me know.