I agree that the technologies did pan out, but I don’t think it’s an ignorant opinion.
I also feel blasé about the new battery articles because they tend to promise orders of magnitude changes rather than incremental change. Batteries did get much better, but it doesn’t really feel that way I suppose. Our experience of battery power hasn’t changed much.
It’s really about getting excited about the article or the tech, it takes so long to see its mild effects that there’s no real cashing out on the excitement, so it’s not very satisfying.