"Although, we were ultimately not acquired by Facebook, this framework helped us, and key members of our company, make the decision to join Facebook." -> Ah OK.
https://medium.com/@krogsgard/the-story-teehan-lax-isnt-tell...
So about 40 people from their company aren't included in the deal.
What would have been better than what they wrote? More honesty. A lie of omission is arguably more dishonest that one told directly. Something more straightforward like "We're tired, and decided to pursue a new opportunity. By the way, here's what we're doing to help our awesome employees move on to new and better things, too" would have been more direct, more useful, and less likely to backfire on them.
As it stands, what they wrote is mostly about themselves, with a paragraph thrown in about the people who helped them achieve success. A more gracious approach might have been to invert the ratio of introspection:gratitude. A smarter approach might have been to write nothing at all.
That said, the posting does read a bit like the partners were tired of doing all the work of running a company and wanted someone else to be the 'boss' for a while. I can understand that feeling as well.
Citation: Lived in Toronto for most of my life