Yeah, FCP will complain about that. But it's not valid and a false positive (that I never considered and will ultimately have to pop out an update to FCP to handle it -> although that'll be a catch-22 as you won't be able to install the update to stop the false positive)
Eventually, most of my plugins will gradually be gravitating over to requiring 6.7+ as the fix that went into FCP is a far better way of handling certain things that the various plugins do.
The next plugin queued up for me to fix is Cleanup Appdata. Followed possibly by Appdata Backup/Restore. I'd love to add the change into CA itself, but can't actually justify putting it in when there's no issues with it.