That’s the secret, they haven’t played it. If someone like that cannot see the technical wizardry done to make Tears run this smoothly with its exquisite set of parlour tricks, and has the gall to believe the game is the same as Breath, it’s because they haven’t really paid attention and think the reused map is the whole story.
And the whole thing about Kazooie having done it before, keep in mind that game was a giant failure. It wasn’t fun. Nintendo managed to make building vehicles and contraptions fun!