Sadly it still means if the source gets corrupted for whatever reason the backup is done, for business files sync is really not backup (I don't think I'm teaching you anything there, but really this sadly doesn't fit my needs at all). Also Hyper Vault is all about the intelligent versionning.

While it's possible to trick it by doing the backup somewhere and then syncing THAT to B2 (and I do it for my personnal NAS), it's too much of a hassle and "complex" setup that I can't see myself pushing that to my customers.

OVH managed to get them to add HubiC in there so clearly there is a way. Hope you will keep pushing them until they move on it ! And thanks for making such a great product :)