Ask any city with a decade-plus development pipeline why its skyline looks lit by committee, and the answer is almost always the same: every building made a locally reasonable lighting decision in isolation, and nobody was responsible for the sum.
A nighttime lighting guideline document is a boring deliverable compared to a single landmark commission, but it’s the only mechanism that makes a fifteen-year, multi-architect skyline read as one composition instead of a lighting free-for-all by the time the last tower goes up.