If you do the training package that the C22 mandates, it's fairly robust and should result in comfort with a readief pistol. That said I reiterate the issue is that we should begin training with a pistol on the assumption you'll carry it loaded and readied. The problem becomes now we have to teach two different draws - one readied and one not. The correct drill should be i unholster my pistol, load it, ready it, check the brass indicator / press check it, return it to my holster. In even the even i have to engage in draw and fire, potentially from the hip or chest if i dont have time and space. That is all normal pistol drill.
Conversely where the caf begins i now have to teach soldiers to potentially do an awkward half draw / ready drill and then do what after they engage? Unload and holster?
All this is to say that carrying a loaded readied pistol isnt inherently dangerous, the CAF at large just sucks at teaching it. Thats what creates the training scars at play here. Regarding the threat - if its high enough to justify carrying a loaded weapon why would you not carry it readied?