Only got through the first 8 mins or so. He makes some good points and good observations, but this guy is worse than Justin Opinion. So much fluff, whatever. Blah blah blah after a certain point.
He does make good points. However, context specific. What is intended use, what is the owner valuing, etc? Ya, Glock not going to regularly win CMP/bullseye type matches against nice 1911s. Is that what you value? I don't. There's a balance between uber accuracy and reliability. There are others balance/difference issues, but that's just one and one that is regularly on display in shooting classes, competitions, etc.
The part about customization. I personally change the trigger, sights, and stipple almost all of my Glocks. Internals for competition guns get tweaked, but others remain closer to stock. Most often than not, the "upgrades" are what cause issues with Glocks. I've personally experienced this and learned the hard way at times. But it's not like other pistols aren't usually modified, especially with shooters with specific needs or shoot often. Aside from those that just like to tinker, 1911s, CZs, even Sig P320, you'll rarely see them closer to stock. At least with folks that shoot/train often/seriously and/or compete.
Will go back to watch more of the video. However, I agree that Glock isn't "perfection", but up to the individual to decide for themselves. Like cars, many just like or hate on a brand just because and that's fine. That we have tons of options is great!
But always will be better than a HK P30. . . at least for those that actually own one. . .