Endgame content requires hours of practice, team synergy and more. It's simply not designed for the casual or PUG in mind. SE has put casual options into the game so that casual players can gear up and enjoy some content, without completing the more challenging content. Yoshi always launches content saying "We only expect a very small % of players can win." It is planned that way.

So OP yes I have to say that's it... Even if your PF filled up quickly and you didn't have to wait hours. Even if your party didn't rage and practiced through the full timer. You are simply very unlikely to win.

This makes the content unattractive for casual players who simply feel like they are wasting time. That leaves you with people who believe they deserve to win yet don't have a static group. These types are often less patient and frustrations can lead to toxicity.

There are other players like you, you just have to find them and try to plan around a busy life schedule. But YOU MUST try to work with the same group of 8 if you expect to progress through the hardest content in the game.