I think this sounds like they altered the area immediately around the bunker to restore a botched job of making it smaller:
"Given that shots that should have been finishing in the sand were not doing so, what was the proposed solution? "The bunker has changed a lot over four or five Opens," said Adams. "Not dramatically, but in the 1970s it was more oval-shaped with a lower face to it. Since then, it’s become deeper. In 2000, we actually made it smaller than it was in 1995. The idea was to make things a little more ‘claustrophobic’."
Also, in this previous change it seems they did not alter the contour near the green, but rather near the base of the bunker. If that change were made today I thnk I and many others here would support it. That bunker has been tinkered with a lot over the years, but has the work ever come so close to the greens edge? Has it ever expanded the "catch zone"? I have not heard of such work.