I think this was a reasonable take by the writer. No real potshots at Rutgers - even said "I know it's not impossible to lose at Rutgers" (and cited our win over then-no.16 OSU). The theme was more that Nebraska didn't have the right attitude and didn't play well, NOT that Rutgers is awful and how do you lose to this dreck?
For a team with NCAA-tournament aspirations, an explosive offense, and a good defense, losing to .500 Rutgers team that just got blown out by 35 points, and whose best player was playing on 1-1/2 legs, IS a bad loss. No other way to look at it if you're a Nebraska follower.