I find that curious.
For the moment manned air traffic around airports far far outnumbers any drones in the area. (correct me if my understanding is dated)
It's puzzling to not want to have these few aircraft tracked and displayed in the information the pilot is aware of, while at the same time taking the position that a collision is so dangerous.
The data could be filtered, so that anything below a certain angle is left out. Just free-thinking here a bit.
I would think they'd want all aircraft that is in ATC controlled airspace – the upside-down wedding cake – to be displayed, at the very least. RID presents a new source of highly accurate, detailed information about these potential obstacles.
While drones are not supposed to be there, and it's tough to make that mistake with a DJI drone, they're not the only game in town.
Just speculating and thinking this through. With nothing more to go on than Vic's use of the term, "adamantly", admittedly thin gruel, I'm curious as to the reasoning – or if there is a bit of professional bias/bigotry driving some of it.
I hope not. Drones that present a safety risk in manned aircraft airspace seem to make sense to be included in the situational data the pilot has. "There's a drone flying near by" seems woefully inadequate to me, when more information is available that could help avoid a collision.
Just label it on the scope.