Prominent finance people criticize other finance people for their decisions all of the time (Buffet et al). I think I could name a hundred other professions where this is also true (I use finance as a good analog). Just because <insert prominent professional> makes a criticism doesn't make it suddenly true.
I personally hated iOS7. Guess what, it clearly didn't stop people from buying more iPhones[0]. At the end of the day, Arment, Heliemann, and Gruber can all take a seat while iOS single-handedly rakes in billions for Apple. This is how business works.
[0] - https://www.statista.com/statistics/276306/global-apple-ipho...