BTW the direct quote is:
"Nothing here to suggest Apple treats artists more fairly than anyone else."
Apple was going to pay as well or better than everyone else (actually a touch more, but no big deal) before agreeing to pay royalties when it isn't collecting revenues.
And again, Apple has no free tier -- Pandora's free tier (95% of users) generates very little ad revenue and that's presumably where artists get their 46.5%. Spotify has over 25% paid users (and is losing money paying out 70% of revenues).
Here's a quote from a somewhat misleading blog post ranting about Pandora's royalties:
"Here’s an idea. Why doesn’t Pandora get off the couch and get an actual business model instead of asking for a handout from congress and artists?"
Apple created a sustainable model for musicians in the age of Napster/Limewire. Now it's trying to do something similar in the age of Spotify/Pandora, and it's doing it with a (potentially) sustainable business model that pays at least as well as anyone else. But until now it wasn't just giving money away.
Let's put it another way: Pandora, Spotify, et al are trying to build businesses by giving away stuff that isn't free, and have the temerity to complain when a company that has an actual business model (buy stuff for X and sell it for more than X) tries to compete with them.