You'd think that, but not in my experience. It's not like they are getting ID3 tags populated by Gracenote or some such service. You're also assuming that the streaming platforms do not attempt to manipulate the metadata they received for their own internal policies. See my other comment in a sibling thread for specific examples.

Too much inside baseball experience with the data the studios/labels believe is perfect that when received is far from perfect leaving the individual platforms to deal with it.