Surely part of the problem is that content-id is a bit far-reaching for CC-licensed content? That is, as my understanding goes: if I release music under CC then you use that music, per its license, to make a derived work and stick it on YT, now I get paid for (and get to stick adverts on) your fully-licensed work! That seems a bit unfair.
So I can see that there would be benefit to a creator being able to monetise their own works on YT, but surely there needs to be a mechanism in place to protect legitimate licensees from an over-reaching licensing grab? And at the moment it seems like that mechanism is just not letting people into the monetisation system at all.
Often the people monetizing the CC licensed stuff aren't even the real owners. I've heard of quite a few people whose own work got monetized without their consent.
There are NC Creative Commons licenses that would be reasonably monetizable on YouTube, though. (But it would require a human to actually figure out if it's a commercial work.)
So I can see that there would be benefit to a creator being able to monetise their own works on YT, but surely there needs to be a mechanism in place to protect legitimate licensees from an over-reaching licensing grab? And at the moment it seems like that mechanism is just not letting people into the monetisation system at all.