There's a difference between measuring performance including frametime graphs etc to provide accurate information, and offering a subjective opinion when seeing that the game stutters and slows down in certain situations.
And would you look at that, there's a corrolation between people noticing performance drops in a specific game and tech outlets confirming it later - just like in Forspoken, etc.
Hopefully FF16 improves by launch, as apparently it's 1.01 and the State of Play version was 1.03, with a launch version probably being even newer.