There was no evidence presented to defend the authors claim. Things like this were prevalent:

The lack of a "real" OS as the engine behind the Chrome browser is actually a good thing for me. My Chromebook runs Chrome faster, smoother, and without hiccups, better than my fast Macs and Windows PCs.

I call bullshit on this, and he should be showing us some benchmarks or something to give this argument any legitimacy.

Edit: I am not sure how to quote things here. So I made some attempts in this post to make the formatting obvious that the words after the colon are not mine.