She said that in a livestream of the game, so you can go watch that fot yourself
I would need an hour of free time to go into detail, but basically, bad voice direction, not addressing some big criticisms from the previous game, combat being sluggish, a painfully slow beginning, removal of features, a camera that during a scene of a character's death would rather focus on Pyra's ass than the murderer, a DRASTICALLY different tone and style of gameplay from both of the prior games despite being hyped up as a game for people who were disappointed with X, Gacha elements in a single player game, a worse protagonist, no actual romance unlike with the first game but rather "All the girls want the protagonist because he's sooooooo cool", a different artstyle which is especially noticable with the image below and more I can't think of at the minute
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I don't have a compilation of the Fiora artwork of the Xenoblade games but her differences in the 2 stle are also very noticable for the worse