The whole format should be redesigned BUT kids would lose out because of the changes and I don't think thats worth it.
My reasons for changing is:
1. Far too much a popularity contest which I wouldn't mind if the celebs didn't put sooooo much effort into it each week.
2. Probably a lot of money doesn't go to CIN that actually should! We ought to know the breakdown rather than them keep saying 'Oh xp per call goes to CIN' and the hidden profitmakers making even more from selling the charity angle.
HOWEVER,
1. Any change and the charity proportion would fall. A great pity.
2. Celebs are probably paid anyway (perhaps from the hidden phone vote profit?). So, while they are putting in great effort, perhaps to be voted off, at least they have all been paid for that 'lost' effort.
So, yes, its NOT fair but TO ALL INTENTS AND PURPOSES it achieves the right result.