Yeah I get that DJI views this as a way to push 107 pilots to more expensive drones. That's why I said they would be better off just saying "It's <250g and we don't support heavier weights or RID on the Mini 4, if you want to operate outside our...
A real irony of this is that the official "solution" for compliance when you have a mix of batteries involves the fiction that a single physical drone is two drones, each registered separately. One with RID enabled in the drone, and the other...
I have no idea and I'm not saying you are right or wrong, but that doesn't make a lot of sense. DJI doesn't display the RID number in the interface unless RID is turned on, so if that was true you'd need to fly it in an out-of-compliance...