If you are the one adding a release and the links to works, the booklet usually mentions the writers of the works, so you usually notice covers and link them to the correct (other artist’s) works.
By the way, on the topic of covers, I would love that we don’t have to mark all cover recordings as being covers. It would be either automatic or we would just mark the original recording.
I don’t understand exactly your two cases in the context of linking a recording to the bad work:
- false positive: ?
- false negative: ?
No links are better than bad links.