[arjie]

Notch was very free with his ideas. He'd often just propose them on Twitter. Sometimes he'd say that a certain feature would be in but later drop it because he thought it wouldn't be good. Also, the game has had a huge community since when it was relatively young and it has evolved in a specific direction (meaning people who started when it was new but expected a different end result were displeased). Notch also seems to have become somewhat bored with the game.

These things combined make some people upset with Notch. Apart from this, nothing really happened with Minecraft. It continues to be a highly successful game and frequently gets new features.

Nothing to be done about it, really. You can't please everyone.