1. The operative word is "seems".
Defintion:
To appear to be true, probable, or evident
The english language us fraught with pitfalls. They stated nothing other than conjecture. Way to go out on a ledge their medgadget.
2. Questions about radiation exposure also (maybe this is a hint to what the FDA wants). Also, if medgadget is questioning the radiation dosage (I'm sure Dean told them about the 50% less dosage that he touts) then they may be having quite a bit of skepticism in regards to dean's claims also.
3. Image limitations. If a 2-D image is blurry or doesn't show the desired levels of contrast, then how can a 3-D image of combined 2-D images be any better.
That's my take. Don't be so thirsty my friends.