Hi,
If this said the Audio industry needs a proper tagging solution … I would agree it’s way overdue there are little to no standards esp. for classical music. However, Roon has to support what’s out there … it is essentially trying to organize and index chaos for its users.
Unfortunately Roon being in your words a “cottage industry” has little influence on what the labels and streaming services provide.
A noble goal, but being pragmatic what choice does Roon have?