This doesn't sound right to me. Reconciliation is a rule adopted by Congress as allowed for by Article I, Section 5.2. It doesn't sound right that a statute can

This doesn't sound right to me. Reconciliation is a rule adopted by Congress as allowed for by Article I, Section 5.2. It doesn't sound right that a statute can be controlling over Congressional rules. I would appreciate a link to the statute you had in mind. It seems more likely that the rules, and not a statute, forbid using reconciliation in that case. Of course those rules could be changed by a majority vote, I believe. I think the only Constitution constraint is that budget bills must originate in the House.