I'm pretty sure this lady meant stereotypes in any company, not just tech employment.

If by "tech" you mean stuff like tech support, IT, or web development, then no, I don't.  I do have 30+ years working in real engineering  ;-)  Women are very rare in mechanical and electrical engineering.  Been that way since I started my engineering classes in college back in the 1980's.

I didn't read the guy's memo, although I looked for it.  I only saw descriptions about it written by others.  So, my next comment is based only on the number of women in my profession.  I can't explain why there are so few women, and I have run across a very few women engineers, so it isn't like women can't do this job.  I do wonder why so few enter the field.  I could imagine a portion of that is how ladies are raised...maybe the parents point them elsewhere or don't teach them things that would encourage engineering thinking?  Had I a daughter, she'd sure as heck be exposed to that stuff.