At the time of posting, the extension actually allows you to export either jsx (which you can directly place in a react file) or html. That detail just isn't shown in the video, which shows an earlier version of the feature. Will update video.
If this could be combined with tooling to facilitate the use of generated code to more easily produce React Native compliant versions, giving you a quicker path to iOS and Android equivalents, you would be halfway to auto-generating what 90% of non-technical people want when they say "just build me something like X site/app".
It's really just a specialized Copilot at that point.