I guess it depends on your definition of "butcher". Restyling a 64 Riv (or 49 Merc or 32 Ford) is a very subjective thing. I, personally, am in to TASTEFUL restylings. A tasteful restyling can be anything from a very mild custom out to a total reworking of every panel on the car; so can a total "butchering".
Ken Fenical (Posies) once said that "Anyone can restore a car, it takes a real man to cut one up." I propose that it takes a real artist and craftsman to put those pieces back together in an eye-pleasing fashion. Was the builder of this Riv a "Real Man"? Well, he certainly cut that car up, didn't he? Was he a "Craftsman"? He won the Ridler, so he definitely has, as my son would say, "Skills". Did he put the pieces together in an eye-pleasing fashion? That is subjective, but I would say NO! And I would say that if he had started with a 49 Merc or a 32 Ford or a 2013 Honda. His "Artistic Vision" seems to be compromised.