Hey there!
A similar suggestion of adding higher knockback to Nemo has already been posted here
The Hive has tried to add this in the past, but quickly rolled it back due to how overpowered it was
With the patch that correctly applied vertical knockback and for its rarity, in my opinion nemo is perfectly balanced the way it is. Any addition of a second would just feel like a bit much
For these reasons, I sadly don’t see this being implemented anytime soon 