Apple itself DID know better. I mean, they had a whole service based around fingerprinting and metadata.
So you can't snarkily make a comment about how they're incompetent "at every level". (And they really, obviously aren't. They're making a lot of money at it--if they were as incompetent as you'd like to believe, they would've gone out of business long ago. It's not like there aren't other options.)
That said, it's not clear why they rolled out a meta-data match with Apple Music. That WAS obviously a bad decision, but it was also a deliberate decision. In my experience, Apple makes seemingly bad decisions often, but they're almost always deliberate. You may not agree with them, or they may be objectively bad, but there was someone that actually sat down and considered it (and eventually got it wrong, unfortunately). It may be that meta-data matches are faster or easier or it was something they were contractually obligated to try for DRM-ish reasons, which the industry always loves trying to impose. I honestly don't know.
Either way, I'm glad it's done with. I avoided adding my home library to Apple Music because I didn't want a zillion mismatched files. iTunes Match worked great for me for the years that I had it, so I'm sure this update will work fine.