I always felt the negativity and hate for the C7's tail lights was overstated, reactionary, and ignorant. The C7's rear lights and fascia are appropriate for the car's new edgier design features. C7's original rear looks great as it is.
And as stated above, perfectly round circular tail lights have not been the age-old mainstays of Corvette inasmuch as the C7 hater crowd wants everyone to believe they have been. But I am sure there will be some owners who go for the understated throwback to the C6's rear. The replacement C6 fascia on the C7 does not look necessarily bad but it lacks the full impact that the real C7 has intended to deliver.