It’s pretty funny some people think it’s logical to have a shot clock on the stream table but not on the others, effectively two rule sets in play. It does not matter if this is common, done before or logistically hard to do because limited refs or whatever excuse one wants to present.
Two rule sets should never be in play in the same event. Some players like to play fast, some slow, if you are implementing a shot clock in a larger event it should impact every player in the event. Adjusting to the conditions is the players job.