For an organisation hosting as many companies data as this one I’d expect automated tape at a minimum. Of course, if the attacker had the time to start messing with the tape that’s lost as well but it’s unlikely.
It depends what’s the pricing. For example ovh didn’t keep any extra backup when their datacenter took fire. But if a customer paid for backup, it was kept off-site and was recovered
It might be even pretending to be a big hosting company when they’re actually renting a dozen deds from a big player, much cheaper than maintaining a data center with 99.999% uptime