I don't see any problem with the "Why don't they just..." questions. People are curious. I don't really like the tone of the post, it comes off as a little el

I don't see any problem with the "Why don't they just..." questions. People are curious. I don't really like the tone of the post, it comes off as a little elitist to me and is going to discourage question asking in the future if people are answered with that sort of tone. Also "Why don't they just" has multiple meanings in my opinion. You explained one of them, a sort of incredulous question querying the stupidity of the people who made those decisions. But it's also used far more innocently as well. I and a lot of my friends will ask questions in that format but as a genuine query not meaning to tread on anyones toes or insult anyone. (I'm having trouble articulating this!) This sort of question asking isn't the exclusive domain of Mars rovers either, it's everything. Politics, economics, business etc etc. It's just natural human curiosity, people trying to understand things that seem counter intuitive at first.