I get the impression that gca has gradually evolved away from quirk, and to one degree or another, the GA guys were against it, but didn't always have the resources to avoid it. As time went on, it became easier to avoid, and more or less standard to stamp it out as a matter of good design, using earthmoving, etc. Now, that its gone, except on some older, select course, some folks kind of miss it, and see it as a sign of design variety, nostalgia, whatever.
I don't define it as blindness. Rather, its some odd earth form, bunker placement, or green contour left for the same reason the old guys left them - usually rock preventing "suitable excavation." Also, by definition, I am not sure anyone should strive for quirk and I don't think you can create it. IF it is a conscious design element, it will look like it and thus not be true quirk.