smart decision, now artists like Adele or Taylor, who wanted this since the beginning, have no excuses to not put their music there, BUT apple will offer them millions for exclusive deals
I think the time frame for new music should be 4 - 6 months. It needs to sting a little to keep people from cheaping out. Most people will just wait out a week TBQH.
This gives the label an incentive to make something happen with a song in a reasonable time frame. Then once millions of people are already listening make it available to the free tier...