MikeB,
I counted one too many fingers. Northwood's #6 remains as the par 4/5, and it was the hole where Mr. Hogan had his hiccup. The lake by the green on the left has been greatly reduced eliminating much of the penalty area, so it is now just a difficult drive. As a par 5, unless the predominant wind is blowing hard, there is no need to hit a driver. #7 is too long for me from the second tee into the wind and 8 is too long as well going the other way. #9 is a fantastic long par 3 as is the new #16 (going in opposite directions). The four road crossings are inevitable as the nine holes on the south side would contain no par 5s, three short 4s, and two long 3s. I've walked the course a few times and the crossings aren't too bad, they just disrupt the routing a bit much.
As to Lakewood's #16, the walk-back to the tee after the road crossing is problematic, but I like the hole because you have a narrow LZ, wind, up-slope, trees, bunkers and road to contend with off the tee. It is a short hole, but the tee shot causes me to pucker up. And the second shot is no pushover. Hit it past the hole and there is not much gravity to keep the putt on the green. Hit it short and you have to gauge the slope perfectly with maybe a tendency to leave it well short for fear of having a come-backer. Am I right? So, if I was a member, I'd probably prefer leaving it as is. #17 with the in-course OB on the left is one I've never liked. For most club players, it is a 3-shot hole. I've seen juniors hit the drive over the trees and the OB to a 9-iron distance for their second.
Keeping up with the Joneses is a first-world problem. I have heard members at the three courses question the motivations for the somewhat frequent tweaking. Older guys don't want to lose 12-18 months- they have less time to amortize the cost and loss of use, though many have other places to play. Not being a stakeholder, I see it more in the context of seeking improvement. I play on a course that has been declining slowly since I've been there, and if you are not trying to get better, you are most likely getting worse.