Specifying requirements for a PF group isn't elitism, it's trying to find a group that is a match for the goal you are trying to achieve. I'd much rather see a group that specifies "farm group kill exp required" upfront so I can know not to join it if I'm still learning the fight... That way I don't waste my time getting in a group that doesn't fulfill my goal.

As to the OP, you realize you are forcing your playstyle on others just as much as they are forcing it on you right? Watching a video isn't required but others are also not required to group with you if they do not want to. Not making an attempt to understand a fight ahead of time is just going to lower the number of willing party members but really, play the game how you want. Just expect others to play it how they want as well.