I'm trying to figure out your angle here. Are you saying that ethereum isn't ambitious enough because it doesn't incorporate these fun crypto techs you mention? I would say that it's already an extremely ambitious project so it's good that they didn't bite off more than they can chew.

Or maybe you are trying to say that this could have been done on Bitcoin? Maybe, but whatever you try to shoehorn into Bitcoin's crippled contract pseudolang is going to be an order of magnitude simpler in a language that is Turing complete.