user created terrain idea

When we look at user created terrain (anivia wall, trundle pillar, j4 catalyst, maybe even Azir ult) 2 of them have knock ups. I am a huge fan of trundle and was thinking about it yesterday, what if his pillar knocked you up a little higher, or based on the location you are in retrospect to the casting location of the pillar? and then i was thinking a little more, what if the j4 catalyst knocked people away whom are on the location where the wall would be spawned, and same with the anivia wall. I mean if a terrain is being created right under your feet wouldnt it knock up a little more over just pushing you back? just something i thought id put out there see what rito senpai thinks