@riaa
Red,
Your ASSUMING that the labels arent giving the services the data. Perhaps the info IS given and the services are choosing not to give you that info. Could be they dont WANT you to see the data so you cant do your due diligence and compare different master/remaster versions. Certainly not saying this is true but it is in the realm of possibility.
Maybe (sounds a little extreme, but anything is possible I suppose), but given the fact that downloads from the labels / artist directly as well as the digital stores (pro studio masters, acoustic sounds any of them really), metadata in those are no better, in my experience. Just artist, track, album etc.. minimal crap. It should contain everything pertinent (what one would find on CD sleeve).
I've emailed Qobuz the exact question (looking to clarify cat number) and they were helpful, but I recall the response was something like that's what the label provided and they are not touching the metadata