As an outsider it's easy.
See here's the thing and I think Katie was cottening on to Priya. Why are you there?
You have to play the game, it's unfair, it is twisted and you have to adapt to the curve balls thrown your way. I think people are a bit stuck on, 'yeah they should have taken the money,' however the situation is changing in the house. Maybe at the time it can be justified, and the initial reaction was sweet. However things are changing. They need to adapt.
I think Travis gave them the worst case scenario for spending money. They need to shrink back from that, but they have to spend money to keep playing the game. They should be thanking Travis. He defined it in a reasonable amount to give up.
Would they have taken 7 and a half grand for people to have a few meals during the week? You bet ya.
They need to adjust and adapt.