Dabbled with similar photography (* not as good as Wu's), and think it would be a challenge to achieve similar results in Photoshop.
Light painting in the sky is one thing, but getting the light source to simultaneously "paint" the foreground in a realistic way -- so it's suggestive how the two physically interacted -- requires another level of PS wizardry (at least beyond me).
I think you may be able to achieve some nice results by stacking a bunch of exposures of the same scene from different times throughout the day and then use some various blend modes and masking to "paint" with the light.
Possibly. Luminosity masks work really well for bracketed exposures, but stacking different times of day introduces new problems (shadow angles, coloring) that I've struggled to adequately resolve. (Sure it's more a reflection my ability level.)
What's fun about drone lighting is that the detail is all 'real', with most of the 'art' going in the setup / staging. Really fun to see it executed well.
Light painting in the sky is one thing, but getting the light source to simultaneously "paint" the foreground in a realistic way -- so it's suggestive how the two physically interacted -- requires another level of PS wizardry (at least beyond me).
* https://photos.app.goo.gl/9ED17BWiRfieVrap8