Well, to be fair, I feel like I know a little about how computers work and the internet started, but I didn't know all these names off the top of my head either. (To be fair, one rang a bell)
I think it's a very different thing to know how something works than who put it together. These days there are so many important software projects, and a lot of people working on each. It's nearly impossible to keep track of. Personally, I think how it works is much more useful than who wrote it originally, especially since these days, most software projects of note have a fair number of contributors.
I would have no idea who they were if not for stumbling across one of bryan cantrills early talks by clicking random videos on youtube, watched all his talks that I can find since then.
Why is it upsetting? It isn't an instinct and isn't a basic law of nature (so it can't be derived), so at some point in time one has to learn it. So at some point they have to ask who they are.
I am happy to see this community answer it, but so people don't feel afraid to ask questions, and so people can learn!
