However, Idaho stops are the way future. It's just doesn't make sense to apply the same "come to a complete stop" standard to cyclists. They're traveling at a much lower speed and have much less ability to accelerate. The extra time it takes to come to a complete stop (which means finding your balance at a stand still), and then remounting the bike accelerating through the intersection is not worth it, and makes the commute that much more of a slog.
I think characterizing the Idaho stop as "rolling through the intersection" might be a little bit misleading, since it conveys a really lax attitude. Idaho stops are generally quite safe.
Edit: In most cases, Idaho stops have very similar cadence to a car coming to a full stop. You slow down up to the line, look all around you, determine the right of way, and if you have it, you start peddling back up to cruising speed. The fact you don't come to a complete stop is pretty much a technicality because the timing is almost the same.
If you come to a complete stop, the timing is all off, and there's much more likely to be hesitation and ambiguity. Starting from a stop takes a lot more time, is much more likely to lead to false-starts, and puts you in a very vulnerable position.