Like others have said it doesn't take a genius or even someone who knows anything about reptiles to see that Rocky is not healthy! She's obviously in denial, it is not hard to see. If she had googled "bearded dragon" or she had looked at the posts of your other reptiles next to Rocky, it is obvious that he is suffering, malnourished and dehydrated, NOT healthy. No healthy dragon lays there with his head down and eyes closed all day! We understand things happen, the eye infection, but there is no reason for him to be malnourished.
Even if the previous owners were misinformed on his care, it would be nice if they admitted it instead of still arguing that he is healthy.
Children need guidance, if they have a pet and things start going downhill that is when a parent is supposed to step in and make sure things are right! If you can't properly take care of an animal, don't get one, that is also something a child needs to learn!
I believe the previous owner may get a copy of the vet bills when this is all said and done, will you still deny the situation of his health? I don't know why you are calling Morgan a liar, a picture says a thousand words, she could have posted a picture of Rocky with no words and it would have gotten the same response.
I had to edit, I decided to be nice, wckdbtch said it so eloquently.