What was your takeaway from it? Especially the line about cast and crew laughing too much.
Well overall it's a lot of focus on Lynch, positive focus, because they can't say anything about what they watched, but my translation of that part would be this:
"What we can say is that Twin Peaks looks and 'feels' like the original. Horror and humor go hand in glove in this season too. People laughed at the right moments in the cinema - but mostly the actors and technical staff, and perhaps just a bit too hard."
So yeah, I guess the writer just got annoyed by it at some point? It's a bit strange. But his point is that the the humor's there, so yeah.
That's not how I understood it. According to Hawk you had to go through the Black Lodge to get to the White Lodge. The Red Room seems to be part of the Black Lodge. Shadow selfs can escape the Black Lodge.
Shooting script of that episode made the black lodge its own separate thing, it looked like a shadow version of the great northern or something if I recall things correctly. Lynch just overhauled that as the director and turned it into the earlier seen red room. I don't think he sees any of them as separate things to be honest, but I guess the white lodge is kept ambiguous.
Do consider that the 'good' spirits like the giant appear in the same place too though.