Im agree with you. You could end this fight with one action (Throw illithid orb in middle of them and they will be all grab in water). But its not fun to end a fight like that. In this EA patch9 , except this fight , enemie dont shove a lot like before , but im ok with the fact , shove is too OP.
- Shove should be an action. And dont push more than 5ft (like the rules of player handbook).