I have an ASUS Zenbook UX31a and multi touch gestures worked great on 12.10, but after I upgraded to 13.04 every gesture stopped working, except for 2, 3 and 4 finger taps (the 3 finger tapped changed function, though).

According to [this comment](https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1172172/comments/16) on Launchpad the gestures were removed by design, but no other explanation is provided.

What is the reason for removing trackpad gestures?