I can't access the linked blogpost because the website is offline, but from the comments here I understand that the main reason the author is invoking for not working at Google is because of Snowden's revelations and Google implication with the NSA.

I think this is strange, we knew way before Snowden's revelations what Google did with the privacy of their users. That in itself should be enough to not want to work there, if you care about it. I know more than a handful of people (including me) who refused jobs from Google (often more than one time, for example I had to ask them to write down to not contact me again after the third time) before Snowden's revelations. The reasons were multiple: "don't be evil" is a joke, Google has been a big company for years now and not really a fun startupy place, it may happens that the job you want is not the kind of jobs that Google offers, and it's not even true anymore (or at least, it is less and less) that having worked at Google make your resume special.