My son was told this tonight - that the unit only holds higher rank (Star and above) Conferences on camp outs. I can find no grounds or precedent in the GtoA that supports such a rule (please let me know if I missed it). To me, this seems like a general denial of the SM Conference.
Requiring such be done at a campout effectively adds a requirement for the rank.
If I am missing something or you think I am wrong in this conclusion, please let me know. Otherwise, I feel like to may need to call the SM and have a polite conversation. Note, the troop holds BORs at normal meetings weekly and since the SM Conference can be delegated to ASMs, the requirement that they only be done at campouts seems arbitrary and without merit.