As a former member and chapter president when I lived in FL, I can assure you that AIA is an established and highly thought of organization. However, as you must know, any study in academia has those experts who agree and disagree with any given set of facts or their interpretation. Scholarly debates are the norm not the exception.
However, even if the cadaver dog info is correct, what everyone is missing is that we have always managed to assume that any decomp fluid the dogs hit on in the back yard was due to something KC herself did with Caylee's body the month prior. We have another alternative available to us and that would be if, after picking up the car at Johnsons, either of the Anthonys took either the wheel well cover (if the stain was decomp fluid) and pants, shoes or any other items and propped them up against the sandbox or playhouse and rinsed them off with a hose. If the trunk had been cleaned with a wet vac and the water dumped out using the garage back door, it would be next to the pool and could explain that hit as well. That would make the deposit of decomp within a day or two and not over a month and would explain why two sets of cadaver dogs managed to hit the same places.
Circumstantial evidence is not strong because it is scientifically irrefutable, it's because, when it is considered in toto it presents a pattern any reasonable person would see and agree with. Three or four separate sources pointing to decomp (humans, animals and scientific instruments) would indicate the likelihood of something being true more than it being false.
OK, this is a bit off topic, but what you wrote made me think of something. Remember the day Casey reportedly backed into the garage? Could it be that on that day Casey took the Wheel well cover out herself and washed it in the backyard? I wonder if perhaps that was THE DAY that she actually left Caylee's body on the vacant lot on Suburban and she stopped by home to clean up afterwards. Do we know what day that was? I couldn't find it on the case calendar...