Because accidentally this move will make more money for Apple. (Follow the money.)

naive people accept at face value PR speak. unwilling to look past that and look for other ulterior motives even less charitable ones would pretty much be textbook naivety to me.

I don't think believing why the most valuable company in the world with the highest and thickest walls around its garden, and a track record of not playing nice with others, is doing this, requires much explanation except that they want to kill the possibility of anyone bypassing the toll gate to the said garden.