The architecture of a green, to me, should be such that it rewards precise iron shots, and that the penalty of an imprecise shot is proportional to the imprecision. The 9th at Engineers (among many others on the same course) is a perfect example of a large green that fits the right model. A very large green, and the penalty for missing it depends very much on the quality of the miss. With a front pin, missing in the first bunker right leaves a relatively easy up and down. Missing deep into the center of the green will almost guarantee a three-jack. With essentially four little greens inside the larger green complex, it is a large green that still demands a great deal of precision.
It is only large greens that, as another author put it, devalue the birdie putt, that annoy me. As long as the shot value of the approach remains the same, I'm not sure I care how large the green is.