I haven't read all the posts yet, although it appears that a spitting contest has developed.
If this post is repetitive, my apologies.
Some years ago, there was at least one thread on GCA that bemoaned any changes to ANGC and that playing The masters on the original 1934 version, or doing away with The Masters altogether, was both pure and preferable.
My response was 1) many golf courses have been amended for the better so long as the original designer, or one of their disciples, was always on hand to examine, think and ensure some continuity. The examples I used, and still do are Pinehurst (Ross), Merion (Flynn) and National (Macdonald). For awhile, you could include Crooked Stick (Dye) in that group. While Pat Mucci and I agree that member-driven golf committees often get it wrong, I rejected then, and I reject now, the philosophy that Golden Era courses are, somehow, sacrosanct. As Ross, Flynn, Macdonald and Dye showed, watching how a course plays often creates ideas many years after the fact.
While Mackenzie died early, ANGC has the benefit of observing many (not all - but enough) ) of the the best players every April since 1934 except for WWII. That is, the laboratory is re-opened every year under championship conditions. I believe ANGC is a far more worthy championship golf course as a result of almost all the ongoing amendments. Even the "second cut" has proven necessary.
All that said, I do wish that so much of the "improvements" did not include the planting of trees (e.g. #15) although I don't really have a problem with it. I DO have a problem with those few trees that are my hated Stupid Trees - they encroach on ball flight either within 150 yards of the tee box or from anywhere in the fairway. The two glaring examples at ANGC are on the 8th tee box and, alas, the sacred Eisenhower Tree which forces only a single shape for the drive (a draw) in order to find the fairway. No straight ball and no fade.
Other than that, I'm fine with it.