IMO the BA shove currently balances it out a bit, otherwise it's almost too good. It means you can't just spam this spell recklessly and auto-win a fight - compared to PnP it's way too easy to catch 2-3 enemies within the AOE right now.
But I can see changing the benefit of changing it just so there's less cases of "this spell did nothing for me", though it's still difficult to balance.
Right now, you can't just toss it into a group of enemies without checking the initiative - and I can see that being a bit too meta-gamey. But even just the Zero RNG -> Advantage + Auto-crit is just such a powerful tool, especially if you have someone running GWM (i.e. Lae'zel) since that gives you a BA attack
The AI also almost prioritizes waking their companions up, so if you're really evil you can even try exploit that. Timing it with initiative - shove enemy 1 outside of enemy 2's movement range, THEN put them to sleep. Now enemy 2 will burn both a dash BA to wake up Enemy 1 who's already lost their turn.
Sleep is still my #1 tool for stomping say the Gith Patrol with no other cheese or pre-buffs. It's that good.
