I have no problem with it being a Bonus Action but it absolutely needs severe limits on its distance. Having Shove as a Bonus Action for a chance at a disengage is fine and doesn't take away from Disengage as an Action that is guaranteed. Having Shove as a Bonus Action for a chance to wake a sleeping ally is fine and doesn't take away from Help as an Action that is guaranteed. Having Shove as a Bonus Action that gives a chance to push an enemy off a ledge they are right next to is fine and doesn't take away from Throw as an Action that is guaranteed.
These are semantic "problems". The real problem behind almost every single one of these posts is extreme frustration at a fight completely turning around on a trivial mechanic that takes a character from 100% to 0% with one roll. That should simply never happen; and not for any "this is DnD and there are supposed to be rules" reason, but because it introduces a "quit moment" into an otherwise excellent game whose success revolves around its ability to entertain. The fact that you can go back and reload and try again isn't the point. The point is that these moments make you NOT WANT TO TRY AGAIN.
And anything that provokes negative emotion that strong that is not extremely limited in scope is terrible design. Period.
