I'm pretty sure your editing workflow can be achieved in the Preview app on macOS. If your editing workflow is just basic chopping clips out of a longer video then yes, you could vibe code it.

> a given user probably only uses 5-10% of the features of a piece of software

Then vibe your own 5% editor, but saying that a software so mature and complete as Resolve can be done with some AI and time is something I expect coming from the mouth of a teenager, not an adult.