I’m no expert but the people in the first video don’t look properly trained or look serious at all. You have people all crowded together, walking around and exposing themselves, people recoding, chairs still in the way, people standing around making phone calls, and their just spraying bullets probably not even aiming at anything.
Taliban also have artillery pieces they captured from ANA and Ex ANA people they recruited in their forces. A well placed artillery hit could have been deadly for everyone in that video. Even a Talib sniper with thermals could have inflicted heavy damage.