I understand what you mean. Within the Roon clientele itself we could pool our accurately metadata tagged albums rather like the way in which Roon has been asking for assistance with language translations. Then Roon could prioritise this Metadata over Rovi stuff, or apply logical comparisons to flag gross discrepancies.
Especially for unidentifiable albums, this would be very useful.
It should be noted that the people who have the best sucess in identifying albums are the ones who meticulously correct and check tag info at time of ripping.
For my part, I rely on online sources to allocate tags (Rovi, etc) and I have unidentified albums to the tune of perhaps 10% of my collection.
It’s certainly a good idea, and food for thought and further discussion.