Excellent question.
I'm a "well known" admirer of the works of the Golden Age architects (Ran Morrissett has accused me of never having seen a course built after 1935!), and have admittedly slighted some of RTJ's redesign work over the years.
However, I've become more and more interested in RTJ's original golf course designs, which, like the works of his predecessors, have been changed thru natural evolution and redesign.
(I don't think I've played an original RTJ course yet.)
I was recently looking at photos of the 1951 US Open at Oakland Hills, for example. RTJ's Oakland Hills looks dramatically different than the Oakland Hills of today. It was much more rugged, for one. The bunkers, in particular, were very attractive, featuring the type of rugged styling that would be praised today at a new course designed by the likes of Doak, Hanse, or Coore.
Staunch traditionalists have called for restoration of Ross' original design at Oakland Hills. Well, considering RTJ's Oakland Hills is about 19 years older than Ross' original design lasted, perhaps a restoration to 1951 is in order. It'd be an improvement at Oakland Hills today. I know that for sure.