I think that a large part of the issue is that with QS and the DxDP, there was nothing designating a “kid credit” or an ”adult credit” up until now, as they were pooled. It’s the sudden designation and subsequent splitting of these previously functionally equal credits that has people upset. I would be upset too if I had planned for a certain path for my vacation, based on credits previously being equivalent with regards to those two categories, and had found out that it had suddenly changed. It wasn’t a loophole, it was something that was tacitly allowed by Disney up until January 1st. Servers would actively encourage children to order from the adult menu on the deluxe plan because the credits were pooled. I don’t think it’s reasonable to expect people not to feel like the rug has been pulled out from under them when this is something that Disney’s own staff have promoted as a feature of the plan for years.