Well you are wrong because it has all the features baby black dragons have and that includes obscure, faded and remnant patterning. A trained eye can discern between this type, and the other dark forms.
I would love to see your adults. Here's some pics of the one I photographed at the zoo:
http://farm3.static.flickr.com/2235/...674956c7_b.jpg
http://farm3.static.flickr.com/2119/...90c45957_o.jpg