Let me show you a pair of videos that illustrate your point perfectly
Larry Vickers and Chen Lee taking money from some foreign-sounding dudes who get all kitted out with bullshit tactical warbelts, IFAKs, and dump bags and all shoot Glocks. Because if you don't shoot a Glock you ain't shit, right? Watch the constant stream of failbus shooting full of mistakes and crappy technique that go completely uncorrected. The only feedback is tactical masturbatory comments like "good hits" or some such bullshit. Listen to their times. I can beat those motherfuckers with a god damed K frame and some speedloaders. My El Pres time with a wheel gun hovers around the 15 sec mark, not great but fuck me.....not nearly 20 seconds.
Now do you think Larry Vickers or Chen Lee can rip a sub 4 second El Presidente? I don't. Who would you hire to teach you to shoot? Those two fatboys or this guy? OBTW, he did that with a Beretta 92:
You should stop by his online store and pick up some of his dry fire and live fire drill books. They are money.....
https://benstoegerproshop.com/