Yeah, i found it fun because it let me try to do some parkour across diferent platforms and sure, sometimes the character would slide away a bit but that usually didn't matter because you could jump to another platform. I also find that without the velocity, the game would be even harder since it's the only way to run away from crystals. Maybe people complain about the layout, that could be it.
I think that you could try to switch the velocity or (even better) adapt de layout of the map to get some juice out of the parkour of the game, this way is not a bug; it's a feature ;)