If, I were a customer- I would be leaving for sure.
When- you pay a cloud vendor, you are generally paying to ensure a few things…
That this stuff doesn’t happen.
That when this type of stuff does happen, they have a recovery plan / working backups.
And, when this hit the news, and I discovered they are owned by a company with a stake in cyber-security, I’d be jumping to a replacement pretty quickly… and staying far away from this company.