I can only relate what testing bears out for shows added ‘New’ - and ‘Now’.
What happens for Shows that are already in the database doesn’t really matter to me - or our tests:
All I can say is a bogus (YEAR) field - that is not actually part of the name at TVDB will fail 100% of the time <— for shows not previously part of the Plexiverse. I too have a WHOLE BUNCH of shows with a Bogus Year field. If I ever have to ‘re-match’ those shows - or if they suddenly come up blank - I’ll know why… and now, so will you…lol
Cruchyroll’s listing means exactly SQUAT to TVDB.
If TVDB is your Agent - you need to match up with TVDB.
There is no Crunchyroll Agent.
You should be OK, but if you ever add an MP4/M4V file with LMA in the top slot and matching goes out the window - you’ll know how to fix it. I’d do it now. As a matter of Preventive Maintanence.
