I was talking about after you wipe and create a new pool. before moving any data.
I’m not sure if the data is alright. But ZFS docs state that block cloning is compatible with read-only mode. But if damage and block cloning was done, I doubt you can reverse that. And disabling is probably not possible at all because the pool ran with these settings.
https://openzfs.github.io/openzfs-docs/man/master/7/zpool-features.7.html#Compatibility_feature_sets
Use this to create the (new) pool with feature flag disabled
You can re-enable it if you feel comfortable…in a year or so