Why do people hate the Gummi Ship?

As a general fan of the Gummi Ship sections, why are they so intensely disliked? I've never understood why the hate is so prevalent. I've always found them to be a nice change of pace to the normal gameplay, and I never find myself dreading a gummi section, except perhaps the Gummi labyrinth in 3 mainly due to the sheer complexity of the thing.