I don't know why more ATC's don't use "Tracks" as opposed heading. The "track" is obviously more accurate, and really helps if your'e affecting a seperation, not having to monitor the ACFT's heading.
Here in SA our Grib Winds (winds at block levels) is not updated regularly, so we donn't have the luxury of depending on, sometimes, outdated information.
In SA RWY heading is used explicitly.
I feel, if an ACFT can fly a Track, use it!