I looked him up also. He spoke at Google IO a few years ago. I can't tell if he worked at Google, but he also wrote some posts on their Geo Dev blog. So he could biased toward Google too.

Anyway, I read the post twice (it was good) and had trouble even finding bias. It reads more like a lab report than an opinion piece and he had criticisms of both maps.

Kinda can't believe he even worked on apple maps. The post was surprisingly fair.