I constantly have trouble in the event editor selecting/deselecting events and so on, and to me, quick edit seems to add another troublesome layer to the process.
When working in the event editor, quick edit can open unexpectedly in the middle of moving events or copying etc and bad things can happen. In trying to deselect the quick edit, perhaps you hit new event/action, and it can cause construct to crash.
It seems like a unnecessary complication, on top of it causing event sheet mishaps and awkwardness, my actions are more often than not much longer than the quick edit will fit...
In the build up to 1.0 I think it could be beneficial to the stability and functionality of Construct to disable this function entirely.