We're also in a situation now where the media owners are building silos for their own content instead of licensing it and letting independent platforms compete on platform services and quality. That's not good for the people buying those services, either.
The pie might be bigger, but the same old middlemen are claiming the difference.
Both the total pie and the total number of creators has increased. Hollywood feature film production is [estimated](hhttps://www.quora.com/How-many-people-work-in-the-film-indus...) to be 3000-7000 people. There are [approximately 61.1 *million* YouTube creators](https://explodingtopics.com/blog/youtube-creator-stats), or approximately 10,000 times more. There could easily be 100x more money flowing to the total visual entertainment creator community and the old guard film creators could still get less than they used to.
I don't know exactly what to search for to get similar numbers for music production, but I suspect it is similar: There's a lot more creators and they get less each even though it's more in total, and this is especially hitting "old timers" that used to get the bulk of the old total and get less with the new setup.
https://www.riaa.com/u-s-sales-database/
Do you have a source for your numbers?
I suspect the disconnect comes from a) a big increase in the # of artists b) artists trying to compare apples to oranges #s as though every stream would've been an album/MP3 sale c) the timeline of revenues: an album sale is a big cash flow shortly after the album release, but streaming revenue is a slow trickle as users gradually discover the album, listen, re-listen, etc