While seeing is believing, I'd never base an opinion on anything seen on youtube. I don't know the types of rounds fired, how many, or if the firearm was maintained properly etc... Seriously, any firearm can fail if mistreated/abused.
For me, I'd take a 1911 over a Glock. It's a personal preference, but I just like having a handgun with the heft to bash someones face (should it come to that).