The old "lost" par 3 superimposed over the new . . . .
Old green = yellow; New green + green
Essentially the new green is pushed back further into the narrow of the ridge. There is now no room for a miss either left or right, with either miss resulting in an o.b. (right) or lost ball/hazard left. The green is much smaller now.
Plus, Thomas describes the hole as a "semi-punchbowl" and you can see in the old photo that the fairway sloped down into the green, and that the bunkers were actually set well back of the green, allowing the option of just clearing the bunkers and bouncing it in. This of course is no longer an option and the green doesnt resemble a punchbowl at all.
If one looks at the photo in the initial post on this thread one can see a hollowed out area short of the new bunkers. While this isnt quite in the same location of the old green, it may reflect where they where the got the dirt to fill in the bowl and build up the existing green location. By shrinking the green and filling in the punchbowl they have effectively eliminated any option viable option other than a perfect shot.
Is this a renovation? Well they made a par 3 in the same location old hole. Also, it still plays downhill. But there is nothing similar about the character of the hole or the options presented. Too bad, since according to Ben Crenshaw the hole was still there intact.