Yep. I don't think this study really took that into account. I'm a software engineer in SV with no degree and it has literally never even been brought up by interviewers.

Earlier in my career I simply would not apply if I saw that requirement. Now I just make it explicit in my submission that I do not have one. It's not clear to me how many non-responses were due to that.

I just leave off the education part on my resume. This has literally never been a problem for me, and most requirements I see say something like "BS or equivalent experience".

Right. This goes for plenty of other "requirements" job ads ask for too.