My experience so far is that Classic players in pugs mostly want runs as fast as possible and as easy as possible. They just want to rush gear ez mode. Those are LFG/ LFR people. Easy to spot. That is why they want pre raid BiS.
But there are many guilds out there looking for good and nice players as well.
Hell, I got a raid spot in a semi hardcore raiding guild as Oomkin. This says a lot haha if you're a good and mature player you eventually find a "home". I got mostly in because of my knowledge, my utility, my politeness and my experience (up to spider wing Nsxx andwith Cthun on farm). Clever RL will recruit actual good players regardless of class and spec.