True. My coworker's kid goes to kindergarten where on of the teachers is male. This guy really had a hard time at the beginning. Parents were very suspicious and worried (why "man" is working in kindergarden???) or took him for a repairman.

The article's author is simply a victim of statistics. If at the conference there is 150 "booth babies" and 300 male engineers, but in one booth there is a female engineer, people make educated guess, based on statistical inference, that this must be 151 booth baby.

I think nobody is to blame here. And, in fact, articles author might turn that whole confusion to her advantage (out of 150 other booths, that one surely will be remembered by potential customers). As a matter of fact it has happened already, I guess it is not that easy to hit top rank on Hacker News.