It's not buried, Unreal blueprints are extremely searchable. It's less about learning programming and more about learning logic. Programming is like "what perfect syntax will get the result I want." blueprints and logic flow is "this does this and so I get this." Far more visualized and helpful to people who don't know how to program.

Several times I've seen designers come on to a project only knowing what they want to have happen, pick up blueprints, and get the logic to do those things. That's learning. Is it programming? probably not in the sense it's not dealing with perfecting syntax but it's learning programming to make the computer do the logic you want it to do. The end result is that people want to make games, is it learning programming to learn how to make games? Probably not. It's learning how to make art in general. IMHO, it's far better than programming.