Wasn't d's invitation withdrawn, and wasn't this on the basis that while he may have been publicly chastised in an inapoproprite way, the fact remains that he still commited a dismissable offence?
The bouncer/s may have over reacted, but the person who's party it is did back their original decision that d should be suspended sine die. Ergo whatever anonymous supporters may say the management's decision is final.
Unfortunately there is a tendency for d, and his supporters to assume that this party is a democratic, which of course it isn't.
As Lesley Gore almost said.
"It's his party, and he'll sine die if he wants to"
Giok