From my general research and specifically from the Shapiro study @Melvin-Moderator posted in this thread, it seems as if more and more agree that with advancement in instrumentation over the past 6 years, FUE and FUT are equally as effective in terms of graft survival and transection and can yield the same amount of lifetime grafts, however, the Shapiro study posit that if you combine the 2 techniques over a lifetime of a patient, you can yield more grafts. The Shapiro study says as much as 3k grafts.
As for FUE being pushed, it seems to be that you need less staff rather than an entire team of techs= more training, etc.