Did you even read the lede?

>Scientists aiming their gene sequencers at commercial seafood are discovering rampant labeling fraud in supermarket coolers and restaurant tables: cheap fish is often substituted for expensive fillets, and overfished species are passed off as fish whose numbers are plentiful.

The link states that overfished species are being intentionally mis-labelled. I would say that, yes, we might as well not bother if the seafood industry is going to pull these kind of shenanigans, absent some sort of regulation from the government (an unpopular sentiment here).