All video games are an artificial time waster. You either get roguelikes or you don't. You clearly don't.

Let's take your analogy and flip it around:

Imagine trying to play a game, but instead of a logical progression with consequences, you can just pick it up from whatever point you like. If you die, it doesn't matter. You can just completely skip over that part and head to the next. In fact you can begin the game at the final boss if you want.

Net result: you get extremely good at nothing to the point that it's boring because you never have to practice or repeat a single thing.