I sort of see where RTJ Jr is coming from. Probably before the last 20 years, the course's trademark and brand was in the fact that it was labelled a monster, a tough golf course that was in part due to the work his father carried out. I talk a lot about preserving history, but what happens when you have history on top of history (ie - an RTJ renovated course that carved its own history, on top of a Ross original)? At the moment, the default is to revert to a Golden Age history, but some courses might 'restore' at the expense of more recent history. No one can ever go play the exact course that Hogan played to make that claim, which is maybe what RTJ Jr was getting at?
Now, before the pitchforks come after me - I'll caveat by saying personally, I think in Oakland Hills' case, it seems like they made the right decision as restoring older history will give a playing experience that is in line with how golfers want their course to play in today's era (more variety, fun, etc). Also, I believe Rees did some work, so it's not as if the 'Monster' that Hogan encountered, was still there for 100% preservation.
But I do see his point that there is a history that one day we might want to wish we had preserved. I just think it's more important to preserve the best original designs from that era, even if we don't think they're worth much at the moment...