Isn't this question about how strenuously one desires to defend par?
I think it's about several things and I suppose defending par is one of them. The implication of fringeless greens (defined for purposes of this thread as having only 2 HOC's - putting surface and 2 inch rough) being more difficult and therefore a better defense is one I would agree with, although I can't say that is universally held. That's something I'm trying to get a better handle on as our restoration matures.
Other ramifications of this style would be:
1 - maintenance ease and cost. Probably easier to maintain and hence cheaper.
2 - aesthetics. I'm unsure how it will look.
3 - enjoyment. At the end of the day, I guess this one's the most important. How will the membership enjoy this new configuration? Will we enjoy developing new parts of our game, e.g. greenside chipping, hybrid applications, etc...?