I saw the article and frankly, I don't have a clue
about why the spirals are going the "wrong" direction. Astrophysics isn't exactly my strong suit. It does sound like confirmation of the old saying (Arthur C. Clarke?) that "Not only is the universe queerer than we imagine, it's queerer than we're able to imagine."
This is where science gets most interesting - a data sample is found that confounds existing theory about galaxy formation. What happens next is that either the theory has to be modified to explain the anomaly (once it's understood) or the theory could even get scrapped to be replaced by another theory that better explains the data. That's how relativity became excepted over classical Newtonian physics - it was better able to explain physics at the extremes.