Well I'm just going off the OoO itself which specifies "When a single card has more than one special ability (including gained abilities), perform the abilities in this order:" and the only exception to that is weapons, not any other cards.
No, galadgawyn is actually correct, as the quote provided is from the REG's clarifications on Band, and therefore establishes its own additional rules to the OoO. If you use a card that bands in multiple cards, those cards all complete all abilities
except those that add any other characters to battle (same argument as is being had here on what that means), and
then the adding of characters happens. It is not an exception in the OoO, but a clarification in band for this situation, so galadgawyn is absolutely correct.