Re: anecdotal stories of personal Lumina smartphones is not the critical topic
The reason you "claim" for Microsoft being a no-show in IoT spectrum are of no consequence if the company is/has lost out almost compltely, which very negatively affect it's potential for viability in future.
Results, and the effects of better (significantly more adopted) technology are only elements for reality in technology business in 2016 and beyond, no excuses.