I think the idea of bringing Move into the RGB framework is promising, but I also have some concerns.
The main issue is state management. Move was designed around a global storage model. RGB, on the other hand, is UTXO-based and intentionally avoids a single world state. Bridging the two is not trivial. If we try to force Move into a global root, we risk breaking the scalability and privacy properties that make RGB valuable in the first place.