At least that's how I understand it.
The mainstream (and wannabe mainstream) media care about lurid headlines, and not much else (apart from the occasional agitprop piece, maybe). Even the most guarded of press releases are regularly distorted beyond recognition. Good luck with the media management!
Press: "Breakthrough study finds that X!!1!one1eleven"
(I know I am caricaturing here, but certainly less than I'd like...)
Social media: "You'll never believe that W leads to this one weird thing!"
The kerfuffle eventually resulted in a bunch of drama, including a leadership change in the consortium running OPERA (https://www.newscientist.com/article/dn21656-leaders-of-cont...).
Thus, the statement in the GP comment that "Nobody wants a repeat..." pretty much captures the issue.
But not Dark Energy.
Basically , they are speculating about a new type of neutrino which is being indicated by a loss of neutrinos we cannot account for.
Neutrino Loss = Inability to detect = New type of neutrino = Dark matter?
Or it is just a instrument error :)