RPAs, at this point of the war, are as good as anyone else with precision strike. Better than many others, frankly. I have personally booted them out of the stack, but you’re right, it was 9 years ago when they hadn’t yet professionalized. The state of their community then was 100% the fault of myopic senior leaders not crew dogs trying their best. Bottom line- right now I prefer an RPA in the stack with me on any mission.
regarding their utility on DA, the only germane question is what does the ground team want from air players? If ground forces need target slant count with zero audible signature, RPAs are the premier asset. If TAC(A) is desired, their comm suite simply isn't robust enough to be the primary choice. I have no doubt RPA crews can train to any task, but we’re best as a team when assigned duties are paired with our strengths to offset each other’s weaknesses.
there are discussions about armed Overwatch being an RPA; probably non-viable because more pragmatic options exist for cheaper.
**caveat: I’m only speaking if USAF RPAs. Other services still suck.