I wonder if he actually intended anyone to find that, except maybe his college buddies. I know that I would certainly think twice about leaving snarky comments in my resume HTML, but I imagine that “view source” was not as easy as to do in the browsers of the time (I could be wrong, too lazy to research it). Or that, even if it were easy, it would not be a routine check that a hiring manager or interviewer might conduct.
Especially when “frontend development” was not really a skill yet: in 1996, we are talking a world of HTML 3, JavaScript 1, and not even CSS 1 until later that year. HTML likely would not have been the focus of many jobs; it was literally just a way to implement hyperTEXT, so the implementation didn’t matter as long as it rendered correctly. It’d be like looking at a candidate’s PDF resume in a hex editor.