Sounds like Urs et. al. were less concerned with shutting down pro-diversity speech than they were with Cory's tone, which they seem to believe per se was causing division. Cory didn't seem to be self-aware enough to understand that.

Since the external links are private, it's hard to know if we're comparing apples to oranges; but it's informative to contrast the reaction to Damore's single memo with this fellow's repeated, willful flouting of his superiors' requests to moderate his tone and stop posting long enough for the topic to calm down. It seems like they gave Cory a lot of second chances and leeway.