Jason,
Second things first. Craig Schriener did a "restoration" of Northland a few years back. Before that, Cornish did some additons, which I think have survived. Having interviewed for the job as well when designing the Quarry, I hate to criticise, as per ASGCA regulations, but I know one prominent Ross expert who often posts here, but shall remain nameless, question the look of some of the bunkers, etc. But, I don't think they touched the greens, just the bunkers and some fw work, so Ross survives.
As to the Quarry, they have had other complaints about overwatering. It may be worse since they had freeze and turf loss from last winter, and may be trying to interseed to regenerate the turf loss in the fairways.
I know what you are saying on the fifth, but I like the low profile green and the semi blind feature. At that length, many would say your change would make the hole too easy.
FYI, the green was originally planned to to atop the shelf that now sits left of the green, with a second fairway up where the wildflowers are. It turned out that that was an old test excavation area for more sand deposits, but it was in reality Peat that was piled up. The soils weren't stable and we moved the hole down the hill. I also fell in the peat up to my shoulders on one of my site walks. I was alone and couldn't get out, so I feared I would spend the night there with the wolves!
Good to hear a report, and I will ask them how they sped up play.