Yea most likely we will try get it banned as soon as it gets pushed in an update. After that it will be a matter of actually playing with it, and seeing if it has a place in jumping or not.
Depending on whether you have to actually switch to it to have the slower fall, along with how it plays with regen will be interesting.
A new attribute for mod_air_control attribute was found in the update, so not sure if that means greater air-accel with it out, but certainly has a lot of potential to break jump/surf.