Respectfully, disagree. To me, as a consumer, the basic purpose is to book a ticket and fly. All of them are simply a currency different than the USD at the end of the day. Just because you are brilliant at playing the game doesn't mean that everyone else needs to jump through the hoops. Simple things like FFC and travelbank can't be used to buy a ticket together is just absolutely ridiculous. Flying itself is a stressful experience. Why add even more stress at the booking stage.

By your logic, they should add 5 more currencies that serve other purposes. How about a currency that can be only used for paying for E+. Or another for paying only bag fees. Etc.