Answer: Nope. In fact, Article X, Clause 13, of the Rules and Regulations of the BSA specifically states, "There shall be no board of review procedure for merit badges"
"Once a registered and approved counselor has passed a Scout on requirements for a merit badge, it cannot be taken away. Nor does unit leadership have the authority to retract approval, or take the badge away." (GTA 18.104.22.168)