I personally thought they would remove soaring leap from mounts A LONG time ago.  It makes it way to easy to bypass content, especially after they fixed ds so they didnt dismount you. 

Most people in the game dont even know about soaring leap, so im not really surprised it stayed in so long, i doubt developers knew about it till gu4 when a few monks started QQ on the main vg site that they could no longer use it on mounts to make a lvl 20 horse the fastest mount in the game. 

Thats cause they borked the code and pushed the wrong version live, its already fixed but needs to be put up today.

Expect a hotfix today, tomorrow and next tuesday to get most of the bugs.  If its major then go to vg players forums and post on the thread there or let me know and ill do my best to try to get it brought up to devs.  If its not in the first 3 or so hotfixes it will probably be on hold till gu5, aka may.