As far as I know mods are meant to change the existant code. I am not talking about anyone's fault, I simply saw a feature that could be in IC2 that isn't right now. Maybe it doesn't serve of any purpose to enable pistons moving IC2 blocks, but I think someone would find interesting for some bizarre machine.
this feature can't be in IC2 right now cause piston can't move tile entities, and the only people that can fix that is mojang. hence its mojangs fault