> non-tech management MBAs running Google are all using iPhones
That's a kiss of death. I remember while working at Windows Phone team at Microsoft, a lot of program managers and designers were using iPhones and Macs. Unsurprisingly their own product never got off the ground because they failed to develop a vision for it. Android at Google is in a slightly better position, but this kind of attitude of not using your own product but preferring a competitor's one leads to inevitable decline.
I recall around that time reading a story where if Steve Ballmer would catch you using an iPhone on the MSFT campus he would blow up. At the time, comments were "make a better phone" but I agree with your position. It's surprising though, eating your own dogfood is one of the golden rules of development. Such a pity Microsoft didn't stick with Windows Phone.
The reason they are doing this is probably because the non-tech management MBAs running Google are all using iPhones.