Hello - feel free to close this if dumb question but, what is the point of this tooltip? Is this a known bug? Work in progress?
I noticed it on many random items in this expac from the very start.
(all addons disabled, this is from ATT)

Example:

Thanks :)

Yes, this is a work in progress. We've marked all new items as "This was never available to players.". Admittedly this is a bit confusing and we plan to change it to something like "This was not yet sorted in the addon.".

Unpinning this now as it was handled in 730ceb5, should be reflected in next release.

should be reflected in next release

It's actually already included in 3.2.4.