Some years ago, there was a forum moderator that was pushing BTRFS on Linux newbies largely because it was integrated into the kernel. I never understood his reasoning or the "unfounded trust". Since most newb's don't have backup, I saw recommending BTRFS as a potential disaster from a forum support perspective. Thankfully, it wasn't widely adopted.
Is it that catastrophic? It's not recommended to be used in RAID5, but it's the default filesystem for both Fedora and Suse (openSUSE and SLES) and has been for years. I'm not aware of reports that large parts of Fedora and Suse users are losing their data.
I can't speak from my own experience though, I have only ever used ext filesystems.