A person at the FreeNAS forums wrote a forum post explaining his mistaken believed that ZFS is somehow more prone to catastrophic data loss when bit flips occurred than other filesystems:

https://forums.freenas.org/index.php?threads/ecc-vs-non-ecc-...

The reality is that the worst case consequences for a bit flip is the complete loss of all data, regardless of the filesystem used. While the automated repair routined bundled in fsck utilities are often able to fix problems on other file systems, the problems that they do fix simply do not occur on ZFS. The kinds of problems that kill ZFS are not among those that an automated repair tool can fix. e.g. overwrite all ext4 superblocks with random data and then see if fsck.ext4 can fix it.

That said, I am usually able to resuscitate a pool that another person would have considered to have been killed by a bit flip. I not only find such failure modes to be incredibly rare, but I find those that I cannot fix to be a rarity among the cases where things did in fact go wrong.