Nor should they ever consider doing this.
I think one has to dissect this a bit.
I get why you would have that allergy; but you also have that allergy to G+C anything, pretty understandably.
Equally, like many of us, you're regularly irritated by too many architectural expressions on one building or by a grade-level expression that reads cold and not particularly functional.
All of those things are in some sense regulated or regulatable through guidelines that could be described as architectural merit.
I get that you don't really want someone at the City saying....'Not that shade of beige'.... {though heritage did exactly that to one proposal of note here on UT)......
I think it's difficult to describe what should and should not be regulatable or incentivisible.
We all recognize buildings with above-average achievement in terms of outward expression and perhaps unit layouts, elevator ratio or some other characteristic.
It's just tough to write a rule, or to empower people whose sensibilities, charitably, are.....inconsistent.
I get not saying yes to it, I'm not sure I'd say no to it..............if we could work out a when and how that should apply.