OB1
Jedi Master
My apologies, I misread your post. That is an interesting idea. So you are saying the rule should be, when a PC rolls a Nat20 on a weapon or unarmed strike, they gain inspiration and get to choose to double the weapon damage dice, knock the enemy prone, shove them 5 feet, or cause them to drop what they are holding.I'm not sure how that is relevant. You can still use your action to do all those other things. The whole point was to make crits more interesting.
Yeah, I really like that, actually. Very cinematic. On the fence as to whether it's a bit too fiddly for the standard rule set, but would be an awesome optional rule in the DMG.