Sometimes there is a learning curve. Conceptual hurdles abound with a complex tool like GitHub. Working through hurdles help you grow as a technologist and as person —but having the right attitude going in, that’s on you.
Also, nobody ever said that design can't be, or shouldn't be complex. But web hosting is simple. You put files in a directory and point a web server to them, and it just works. If it doesn't, that's a failing of the designers.
Complexity of design and complexity of delivery are two totally different things, and complexity of design has (or should have) absolutely nothing to do with complexity of delivery.