It depends on how much you appreciate the so-called "intimacy" factor which Grado is known for.
To me, that is the key downside for critical listening.
I just don't want to sit in the front rows in a concert every time.
For rock, maybe the first row is always better, but I don't listen to rock anyway.
The added distance from GS-1000 to me is just right, not too far like Beyerdynamic (except for T1) and not to close like RS.
It is the distance which I can either enjoy or analyze music depends on my mood.
It gives enough detail and information on recording location so you can easily tell whether you're sitting in a small recital hall or large concert hall.
It is unforgiving to lousy records, which is also important to critical listening.
For me, I don't need RS to bring intimacy, I'll just let the recording itself does the work.