A couple of hours is absolutely nothing compared to the
massive worldwide effort that
many people have to put in to fix the problem of a company’s shitty product and release practices.
This is inexcusable, point blank. “A couple of hours is a long time” is not a valid excuse when the alternative, as clearly evidenced, is millions of computers and critical systems simultaneously failing hard.
This might have been different if it was a small subset of computers, but this clearly could have been caught in minutes with any sort of sensible testing or canary rollout practices.