They are also the backend for Dropout, which has just shy of 1m paid subscribers.
So I understand your selfish sadness feelings.
Well, some good news is that if you've ever wanted to build a new video streaming platform there are a bunch of companies that'd love to sign up.
I'm sure dropout et all will be able to continue with their same level of functionality in the short term but I can imagine the bills they'll be receiving will be escalating quickly.
And Criterion :(
That's partially due to history: Vimeo was split out of CollegeHumor, and CollegeHumor became Dropout. (Both were part of IAC and were spun out/sold off.)