I would recommend you check out the GoogleIO talk on this: https://www.youtube.com/watch?v=2txPYQOWBtg
But yes, the idea is that what we have is zero-dependency, best practice components that could a) be used by any framework b) drive browser vendors to look at the best and most commonly used tags, so they can then be implemented natively.
Do you imagine that they would all have zero dependencies? Perhaps the wiki/homepage should suggest a base way of interacting with said widgets.