This resonates so much and seems to be a major trend in non-traditional tech companies. I've mostly worked in the financial industry and the executives' knowledge of technology is almost always horrible. As you said, a couple buzz words and very set opinions on the ways to do things. It's like they get pet projects in their head from reading an article in a magazine and get locked into it.

I don't really have an issue with CXXs being ignorant about a subject. No one knows everything. What I do have an issue with is when they act like an expert ignoring all the people who are actually experts in a particular area. It'd be like me going into a room full of IT people and saying EBITDA a bunch of times claiming to be an accounting wizard ready to lead a major initiative. It's frustrating but I've learned all I can really do is smile and watch the show.