For me the disengage is just silly, It basically cancela attacks of opportunity.

The shove as a bonus action I'm not sure if it is a bad thing, but I'd like to playtest it with reduced distance (5ft like PHB) and with contested str checks (my rougue should no be pushing minitaurs so easily). If left as a bonus action I believe the option to make an enemy prone should not be added, but with only the push option might be a fun play with verticality that will be more used than it's PHB counterpart. Of course I could be wrong and even after the changes It still can be bad.