So I have a darker take on this: Dries banned Crell as a face-value reason to strip a competitor of a seat at the core contributor table. Crell works for Platform.sh, a challenger to Acquia's main hosting platform product. Drupal has lots of very senior architectural voices already, so losing Crell isn't going to jeopardize the platform, and it's more convenient for Acquia for them to work in the same place.
According to Crell's post about this [https://www.garfieldtech.com/blog/tmi-outing], the Drupal Association apparently attempted to apply their code of conduct and found repeatedly that Crell had done nothing wrong. But then Dries decided to ban Crell with little fanfare. Hard to believe that Dries cares that much about Crell's sex life. Easy to believe that he's become a cutthroat opportunist who would use the Code of Conduct to optimize Acquia's outcomes. What would have happened if Crell had worked for Acquia?
That's the thing about a BDFL. Give him enough VC money and ultimately all that's left is a giant D.