I liked the episode. I don't think it's anything like season 4, it was very introspective about Abed and Britta's characters. In some ways it was critical of Abed and Troy's relationship, casting Troy as an enabler. So when Troy is taken away Abed attempts to bully people into indulging his fantasy and ends up having to reach out on somebody else's terms.
I did like the episode. It's not one of my favorites, but it's streets ahead of most of Season 4. Seeing Duncan pass up on Britta was a great decision.
It was a drama episode, and the show's never really done an episode like that where it didn't go for comedy bits and just developed the characters' emotional state. The bit where Britta meets all her old anarchist friends and they judge her for not being financially successful was very well written, but it wasn't funny.
I don't know, Season 2's "Mixology's Certification" was similar. Sure we had Pierce in the wheel chair trying to get into the bar, but that typified the humor of the episode, where its more awkward than laugh-out-loud funny.