As others have explained to you above, they will have no problems whatsoever with gaining an exemption.Ive heard twomey say port cannot trade their F1 this year without appealing AFL rule. As for the above not sure about that. That is a rule to do with the draft, and as JHF was traded I cannot see how that would be linked unless by special exemption they got from AFL (possible but I dont remember this being granted).
Port did appeal the trading of F1 and F2 fron the same draft and were given an exemption to do that once I remember.