It would be funny to see someone grapple an enemy while being shoved and heroically launch off a cliff together lol
Do you think Barrels is an unfair advantage, but suicide attack is Ok? LoL
I alread imagine people complain: "The low levels weak kobolts easy kill my half-orc with 20 strenght, 18 constituion in the first turn"
In my opinion, "barrelmance" is NOT an issue in single-player game. If the player want to cheese his adventure let him do it.