A big advantage because If the plant grows slower, you have to mow fewer times which saves on mower hours and equipment. Slower growth means fewer and smaller clippings per year making less to dispose of, maybe small enough to leave. Leaving clippings to break down and re-feed the plant . Slower growth means stronger roots and longer grass life, reducing stress. By leaving clippings to break down means less Nitrogen needed in the future since you have organic matter breaking down to release some of its Organic Nitrogen.
Fewer clippings mean less effort.
Less labor employed to pick up clippings, equals less man-hours per year, which means dollar savings. Less stress to the plant means less disease. Less disease means less chemical dollars. Less chemical dollars means lower cost overall to the Course. Less Chlorides and improved soil tilth in the root zone means more microbial and earth worm activity.