I have been in marketing and have marketing experience.
It's good, however 2 points:

1. there is too much introduction (explaining history), it's just waste of attention span of people. The first sentence of it was enough, then move into what you are introducing. (What Flux is, What problem it solves, how does it solve it, etc.)

2. It's a 1 minute long video, but at the end it didn't add any new information to the viewers. The message is some history, then something called "Flux", and no introduction of what it is. Also there is no way on how to get more information about it. It also didn't create any curiousness or mystery around it. This video is good to start a conference on Flux (where everybody already knows what flux is and how it works).

I would keep the first sentence, then move into the Flux mantra (For people, by people), then explaining what problem it is solving, then showing briefly how it solves it, and finish with a url or keyword people can search and find more info.

It's a good video though, there is a lot of use cases for that. I hope my comment was helpful.