Maybe it's me, with my themed armies and casual pickup games and all, but what i'm seeing here is no big change.
Things are much as they were back when I started in 2nd Ed.
Get your toys, play your games, have a giggle, go home.
I've never once been to play at a GW or club (UK or AU) and the only people who wanted to play there rocked up and said
"Hey, want a game? I've just finished fine-tuning my high powered tourney list!"
It mostly been more like
"Hey, I've just finished my (insert thing from the background/a novel/codex fluff etc here) stuff and I want to try it out. Game on?"
Is there some secret rule that gaming clubs in the US have to drive all their players to play like every day is a tourney?
Serious question here, because I have literally NEVER seen a Screamer Star or a Taudar list at a normal workshop games night, I had to look them up online to find out what they were!