Google is a smart company and Sundar Pichai is a smart man.
I’ve consulted for an Indonesian company before interested in launching its own tablet. It was not an easy process. They had to meet many potential vendors in China, test an endless list of components and spend a lot of time haggling over price. Even then, prototypes were often disappointing from a price-to-performance ratio point of view. It was a huge management challenge, especially for a company whose strength is marketing and distribution.
The Android One program makes all that easy.