That's awfully harsh. I like having the instructions. Not because I'm incompetent but because it gives me a guide to follow. I'm not going to install the beta software on my phone but that's not because I couldn't manage it. I do a lot of Terminal work for my research. I look up how to do things all the time, even if I've done them for years. It's not because of incompetence, it's because I want to make sure I do everything correctly.
Surgeons use checklists (which are essentially instructions), not because they are incompetent but because they want to make sure they get everything right.
People need to understand there are risks with beta software but if someone installs it and it breaks something, it's an opportunity for that person to learn.