Earlier quoted context omitted.
The writer is retired and probably in his 70s now, so keep that in mind
I assume you're referring to the HN user zabzonk, rather than the article author Donna Vatnick. The HN user zabzonk's profile description says "Ex C++ programmer and project manager". It'd be interesting to understand more about their crossover from microbiology into C++ (or vice-versa).
My observation about female technicians was in no way meant to be derogatory - I had several female managers who I liked very much, and I've always admired female tech's aseptic technique, and other techniques compared with mine.