I don't know if this is some weird decision by IBF to try to extort some money out of Beterbiev's team or the Saudis, or will they change their stance under the pressure of boxing fans. Alternatively Beterbiev could just drop the IBF belt and maybe try to win it back later.
Given the magnitude of this fight, I believe the IBF will change its stance and allow the rematch between Bivol and Beterbiev to happen, albeit with a smaller purse, as these boxing organizations often capitalize on any opportunity to make money. Fortunately, HE Turki is willing to stage the rematch. In my opinion, he is the only person capable of paying both boxers a substantial amount to face each other.