I imagine it’s just another “rewards” card like your Alaska Airlines Visa or your Delta Skymiles Visa that give you miles for air travel for every so many dollars spent, or the Shell Mastercard that gives you cents off per gallon for every regular purchase you make using that card, or the Discover card that somehow just gives you cash back for spending a certain amount. Nothing new.
You do realize that these rewards cards are able to give you such deals by charging merchants a higher transaction fee for these cards than standard Visa/Mastercard or debit cards, don’t you? And that these businesses that are tired of paying for your Hawaiian vacation just raise prices across the board for everyone to compensate for the expense.