First, welcome to Scouter.
second, relax. Scouts USA is about youth becoming independent. Frankly, I’d rather see you as a merit badge counselor, Troop Treasurer, or ride coordinator … work in the background.
as far as the COR goes, he can try to say that all he wants, but families go to the unit with the best program. There is absolutely nothing he can do to stop families from making choices. If your District Advancement Chair is anything like a friend of mine, he will take away access to Scout Net advancement module for the unit, and have a district guy do it!
So, enjoy the journey, and do the right thing by the youth members.