I think it is important for two reasons. First, the primary purpose of RAID is to improve availability of your data, such that you can continue operating in spite of a hardware failure. If the RAID feature of btrfs has serious data loss problems, then it is taking a feature that is supposed to increase availability, and instead decreasing it. It is like an UPS that is more likely to cause a power outage than to protect you from one.
The other reason is that the atomic snapshot feature, and ability to easily transfer diffs of snapshots makes a wonderful foundation for incremental backups. But if I can't trust the filesystem to avoid corrupting my data, how can I trust it to avoid corrupting my snapshots? Hence I can't trust my backups. So I need to go back to a more independent backup processes like rsync.
With those two features gone, my whole motivation for using btrfs over simpler file systems like ext4 is gone, so why bother.
The other reason is that the atomic snapshot feature, and ability to easily transfer diffs of snapshots makes a wonderful foundation for incremental backups. But if I can't trust the filesystem to avoid corrupting my data, how can I trust it to avoid corrupting my snapshots? Hence I can't trust my backups. So I need to go back to a more independent backup processes like rsync.
With those two features gone, my whole motivation for using btrfs over simpler file systems like ext4 is gone, so why bother.