If I had to quantify this - 3 hours * 3 people who can't work and publish posts + about a week of marketing costs for damaged rep (apologies, PR, ads for exposure). I'd say that for the very least this cost us at least 1000$ and probably north of 3000$.
This is not the first time this has happened in the last two months (after a relatively reliable year). The problem is I'm not sure any other hosting provider would do any better.
So the question becomes, would putting a DR site on AWS or Google cost more than the $3000 this outage cost you? If the answer is no, wouldn't it be worth architecting to not put all of your eggs in one basket?
Be mad at the service provider if they don't live up to the number of nines they promised. Be mad at yourself if you expected more nines than they can deliver.
This is not the first time this has happened in the last two months (after a relatively reliable year). The problem is I'm not sure any other hosting provider would do any better.