I also can't find a status page and not so much as a peep from Backblaze anywhere. I pinged them on Twitter [1] to no avail. I like Backblaze but this has been going on for 3 hours now. You can't be down for 3 hours without any communication about it...
From the support page, I get the impression nothing will happen until 9am Pacific. Tickets have a 1d response time, and chat is Pacific working day with a lunch break.
[1] https://twitter.com/JasperSiepkes/status/1329347119774375937