Back up again.
FWIW last time I didn't have to do anything. It just appeared back (I recv'd an email informing me it should be back up from partner success. This time, I didn't hear anything yet, however another member of the forums re-submitted a feed and their channel did go thru. Fearing putting my channel into the back of some 'fix it' queue, I threw caution to the wind & resubmitted mine. Viola, all urls did ingest & it took an 'Update Channel' to see the videos for me, although I think casual users would have it auto update every 6 hours or so.
Anyway, if you still had a Vimeo outage you may want to do some diagnostics, of either updating your channel or submitting a new feed url.