The part about distinguishing the animals from one another is still a problem, but I think that if Pokemon were actually real animals kids would distinguish them just fine anyway.
Mother Nature, alas, does not have this luxury.
Only if you assume no intent on the part of the study's authors. For example, I wonder if they would have had quite a different result if they'd used, say, 14 year olds. Or a mix of ages.
I wasn't overly encouraged that two of their citations were for the Biophilia Hypothesis. An interesting book, for sure, but not exactly rigorous science.
I was left with the definite impression that this study was as much about politics as science. To that end, maybe not dumb just not particularly impartial.
I suppose if they were trying to force a conversation about (say) getting children to zoos, it wasn't dumb.
But in the sense of extending the human race's knowledge, it was dumb.
Found the study - they used 100 common species.
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.477...