Yes, the campaign is childish, but so are the article's misrepresentations. For example:
(1) Google Docs - not Drive - does not have "nearly the same capabilities" as Office by any reasonable definition. FFS, they don't even seem to have proper support for custom paragraph styles, widow/orphan control, etc. There are certainly ways in which Google Docs improves over Office, especially wrt collaborative editing, but there are also massive gaps that make it almost unusable for anything medium-size or larger.
(2) Microsoft's characterization of Chromebooks as "useless without the internet" is not entirely wrong. Constant internet connectivity might be the norm everywhere the author has gone, but it's still not something one can rely on in every corner of the globe. That being the case, "suitable for use while traveling" really might not apply sometimes. By the author's own cited definition, Chromebooks - like the one I'm typing this on - might not be real laptops for many people.
In both cases, the author starts with a grain of truth and then destroys his own point with exaggeration. The piece would have been far more effective if he had stuck with the facts - which are damning enough - instead of letting his bias shine through.