No, iTunes Match and Apple Music are still separate subscriptions. And the iTunes Match support article specifically references ineligible music, but I couldn't find any reference to "inelegible music" in the Apple Music documentation, so was confused.
But, I just found an iCloud Music Library support article (which applies to both services), and here is the description of what is categorized as "ineligible":



Ineligible
This icon appears next items that can't be added to iCloud Music Library. A song might be ineligible if it wasn't purchased from the iTunes Store or was purchased using a different Apple ID, or if the song file is larger than 200 MB, is longer than two hours, or was encoded at 96 Kbps or less.
Here's a link to the article that explains all of the various icons you may see: About iCloud Music Library icons and status - Apple Support
Cheers,
GB
