The feedback I received from one of our Devs is that we always export full range. There was a bug that was fixed in 14.6, that we were incorrectly stamping an Avid specific metadata flag as 'limited range' even though the stream was in fact full. We fixed that incorrect flag in the QuickTime wrapper, in PPro 14.6.
Encoders that utilize the QuickTime libraries offer TV/PC as a choice (TV=709, PC=RGB):
Could Adobe offer this choice as well? We want this flag included because we are a broadcast station, and we want to be consistent across numerous pieces of software (more than just Adobe CC products) - 709 across the board for HD content.
XDCAM export still uses the TV flag in PPro 14.6+. We use both of these codecs, so, again, we want consistency with this flag (709 across the board).