For monetization we'd like to keep the editor free for people to use and may monetize through add-on services like hosting. The way I like to think about it is that we may monetize on convenience points but keep things open-source so if you wanted to do things custom, then you can if you'd like.
On the video – thanks for the note there! We can certainly show it to do something more detailed as well than just a background color change. The good thing is that any designs done with Onlook still go through the usual code review process for any project, so hopefully people won't accept non-compliant design changes. In the event that they do, it'll be easier to fix things with Onlook.
On the lines of keeping things compliant with design systems, I'm excited about our ability to surface design tokens from a codebase, so users can always be sure they are selecting the right colors in the right scopes. That's something we still have yet to tackle, but have an open issue for:
The video needs work; the main risk perceived will be to have bad design applied and not be caught. The video is basically a demo of that scenario.