Well I was 5 when it was released so I can't speak to the discussions that arised when it was released. I've fairly recently delved deeper into physiology, pathology, and decay mycology so these more difficult texts and papers are pretty new to ME. I know that they're not new revelations to some of you folks but here I sit trying to get better and more informed everyday. Gotta start somewhere...
I will say that I'm guessing that at least some felt that it had some positives when it came out as far as opening discourse and debate which is how scienticific theories should be discussed. There's only so many scientific laws after all. Hell, gravity is still a theory but I'll be damned if they weren't onto something there. I would also guess that some completely disagreed whereas some felt there was merit to points in both.
I put it up because the CODIT model is still very much around although it has been refined since then. Schwarze, Liese, and Dujesiefken among other site CODIT as the accepted principle. I was also interested to hear how others have published conflicting or perhaps refining work to that of the original Shigo model as well as hearing how some Buzzers feel about the subject.