1) Level-lol-ing up:
TO DO!
2) I think that you were kind to us in on few counts:
A) You let us know that we weren't destroying these things, we were shifting their body parts around. Unsubtle hints abounded

B) You let us know that it were the religious types that caused the problem in the first place. Maybe this was the plan anyway, however. Not a criticism.
C) The end scene where the critters all suddenly converged on the golems instead of fighting the party all the way back to the doorway - you should have been harder on us? I'd have taken a free attack from them to have gotten out anyway.
Z) We didn't really organise ourselves to attempt the alcove/pressure plate idea. Although to be honest Falkor rolled so high with his attempt at the door that it didn't matter

If you would have FORCED us to have used the trick to open the door though it would have been much harder, that's for sure. The forum is a difficult medium to bounce quick ideas around, tbh.
Y) I kinda like the simplicity of Haynuus tbh. No messin' about with psychological or philosophical issues for now

I realise that this is 'roleplay', yet the puzzles and rushing to the aid of yer mates is fun for me. Especially as you've bent the whole thing around the DM universe.
X) As for the teamwork, it was fine. Keeping away the nasties from the people trying to get the door open. Would have been more testing if we had to use another method to get the door open though!
W) I enjoyed the encounter. Brighteyes adds some sauce to it all, doesn't he!
3) Screamers. Just a slice of one would do.