The first time -- and still one of the few times -- I ever walked out of a meeting because the BS level seemed too high was when I visited Higher Order Software in the 1980s.
Can you please share details of what caused you to walk out? There is a lot of curiosity around USL and the toolchain she and her team have built, but my Google-fu has failed to come up with descriptions of practical experience with them. I'm struggling to decipher how different it is from UML, or what it is solving that functional approaches are not already working to address.
It was 30ish years ago, so I don't recall details. But it seemed overhyped. The usual problem with tools that do a great job of generate code is that they do a great job of generating CERTAIN KINDS of code, but are unhelpful or even counterproductive with other parts of your development task. Certainly this was true in the 1980s, and back then the problem was exacerbated in that there weren't graceful ways to combine what was generated with what you had to write or modify by hand.