Some CAs are experimenting with shorter, 7 day certificates as well.
still not an outage that would endanger anyone's ability to renew in time, but for small or extremely shitty CAs (and there are a lot of those) such an outage may take enough time to cause issues in theory I guess?
It doesn't have to be small or more shitty than average. If Google has a compliance issue and can meet it in 8 hours then its a pretty clear one. They could have an issue that needs round trips of discussions with auditors before resuming. etc. I'm not familiar with 24/7 auditor services.