The cycle of disbanding that keep casuals from doing content

[Codek]

I'm not even talking about T9, just T6.

I only brought up T9 because it's an extreme example but the same thing can apply to T7 to a lesser degree.

T6 has PuG's slide by it every now and then but it will only get you so far. You need like minded players learning the fights relative to yourself to progress and that will most likely never happen without forming a static in one way or another. At least, until these fights get nerfed into the ground from where they are now.