Despite the issues with the Nevada Democratic State Convention (where no chairs were thrown), Democrats now control both houses of the state legislature;
I don't understand the significance of this part, particularly why the phrase "Democrats control both houses of the state legislature," alone, was not sufficient. Are you still salty about that?
Because it shows that, in fact, despite the bitterness of the campaign and the hard feelings engendered, it is in fact possible for the various wings of the Democratic Party to come together and accomplish something that a lot of analysts might not have thought possible--Nevada is generally thought of as a Republican-leaning state, but it's currently got three of four House seats held by Democrats, went to Clinton against what I think many expected, has its state legislature controlled by Democrats, and is their best chance to knock off a Republican in the 2018 Senate elections with Heller.
I don't know whether or how that can be done on a national scale, but the fact that it happened in Nevada and that they then passed this shows that it is decidedly a possibility--and hopefully one that will be realized soon.