Blackhawk! Serpa Holsters

I have seen a growing wave of very serious hatred elsewhere on the net regarding the Blackhawk! Serpa line of holsters, the latest via Say Uncle (here) where an instructor says no more Serpa's in class (unless modded/ruined).  I am military, and have been issued several of the CQC Concealment variant.  I've even bought one for my own Glock.  I have utilized it chest-mounted overseas while sitting in a turret, thigh strapped (I dislike this method), and most preferred, mounted on an extension to my battle belt so it rides below my armor.  I have trained extensively with this holster system, and so have my brothers-in-arms.  I have never witnessed a single incident in our thousands of rounds, and hundreds of hours of training.  I'm not saying it hasn't happened elsewhere because it most certainly has.  Let me dive into my take on this matter...