I think it probably scared the researchers too much that the "normal" neurotypical people were less likely to have moral values in any meaningful sense, so they tried (badly) to reframe it as neurodivergent people being bad. That's probably what they're used to believing in general, so they made an argument closer to their comfort zone instead of reporting the facts.
Kind of reaffirming the study, in a way.
"You don't seem autistic" That's because I've spent my entire goddamn life trying to act and sound like you, because having no meaningful differences is a requirement to being treated with respect in this culture!
Sometimes people say that without being accusing, like they're just processing the information and learning what it means that autism is a spectrum. But even then, it's so hard not to be irrationally pissed when I hear that.