Are those people not watching YouTube videos also refusing to take any advice from other players?

i.e.

Player_01 >> OK, so in this next phase here, Mob_01 is going to . . .
Non-video_watcher >> STOP TYPING RIGHT NOW OR I AM GOING TO SCREAM!!!

Having someone explain the fight to you is about equivocal to watching a video, except for the fact that it is actively using someone else's time, where is watching a video only uses your time.

If that's the case, all the more power to you. If I thought it was realistic for me to efficiently learn-by-doing in all fights, I totally would do it. I really don't have the time to do that though, and I respect the time of the other people doing the fights that have already learned or had the fight explained to them enough to watch a video so that Mr Happy or whomever else can explain the basic principals to me.