While the incident did happen, a lot of actions were taken and most of the data was recovered. OVH now also keeps backups even for clients that don't pay for it.
I was hit by that datacenter catastrophe and got my data back almost immediately, in a new VM.
I've been using them for years with little issue (no more than happened on my AWS or Azure accounts, I would say less because it's less of a mess in general).
Stop spreading false rumors.