They focus on aesthetics, style and superficial things and give shallow, uninteresting gameplay. It's like they are trying to be artistic and fail horribly.
Braid, Super Meat Boy, Trine 2, Limbo, *THE WALKING DEAD*, Cave Story, World of Goo, Hotline Miami. I hated them all. And those are supposed to be the very best.
*Disclaimer: To The Moon is really awesome.