I think 99.999% of crime that would occur around someone is deterred if there is someone open carrying, mitigating the need to actually draw the firearm.
The unconstitutional restriction of being unloaded and allowing officers to VERIFY that the guns are unloaded should not even remotely be considered a good thing. If someone wants to be proficient drawing, dropping, racking, etc.. They will do that regardless of state mandates. Further, most OCers carry loaded concealed or loaded open at home so the "muscle memory" of drawing from UOC is mixed.