OVH was held liable because of the data loss, not for the service interruption. Data loss is something irremediable, permanent, definitive. Some businesses were basically ruined from this incident because they had no more data to operate. To add insult to injury, they sold offsite backups in the datacenter literally meters away. A service interruption, well, shit happens, and this is handled by SLA contracts that both parties agree to. You don't ruin a business (read: close a company) for a few days of outage.
I doubt CrowdStrike will be held liable for much; from corporations at least. They cannot repay the damage done, or they close the door. The healthcare sector is another beast, but I think it will come to more regulations for critical entities.