The idea that the road might be in play from the bunker if it's made shallower is frankly, silly. When was the last time you saw any professional "fly" a green from an adjacent bunker.
That might have been a possibility in 1960 or so, largely because there were neither 60-64 degree wedges or the degree of assiduous bunker maintenance that exists today, even on links courses.
Plus, pics prior to 1960 all seem to indicate a deeper and steeper bunker than in the 60s, 70s time frame. It's very likely that the bunker was softened sometime in that time period but let's not forget that it was historically known as one of the most hazardous bunkers in the game so talk of "restoration" to 1960 is really being historically selective for purposes of "not making professionals look foolish".
Tiger's comments about "too many high numbers" is indeed indicative of the overriding concern for fairness and equity in medal play scoring. I've yet to see a ball in the road hole bunker that couldn't be played out left, right, backwards, or courageously and dramatically played to the green. Any player approaching that green should understand the risk if they challenge a left hand back hole location. How does that differ from a water hazard on the same hole??
Personally, I'm glad that the bunker is being put back as it was and I can't imagine why anyone would want to see it softened. As it is, it really is the heart of the strategy on that hole.