Yup. First, the anti-war left will never believe that the rapes weren't committed by the troops they (sometimes) pretend to "support." Second, that same anti-war crowd got a lot of mileage out of this in the complicit MSM. Third, the story will probably fade away very quickly now that the charges have been shown to be bogus. In other words, evidence of innocence on the part of the troops will get very meager coverage compared to the initial charges. Fourth, perception of an eevviiilllll Western power as, well, evil, will long outlast the story itself and in fact won't be dented one bit by the actual facts.
In other words, these charges did exactly what they were supposed to do -- although I'm sure the anti-West types would have been overjoyed if even one actual rape by a Brit soldier could have at least gone to trial.