explain
We've already listed the cons that are already evident in RO. What you describe would not improve the game, yet possibly making it more frustrating.
explain why, is it hard to go by different way, to avoid fire? For me artyllery never kill me or not often. Maybe you die by first barrage, but if you are clever enough you dont die again, because you dont go to fire. Also there is time between strikes, so if you are not dumb artyllery is not impossible to cross if you run in right time and cover in right time. What you telling is not reason against my idea.
There is no frustration, there is just your fear of something new.
I am for realism in RO, and I think that its not realism to climb hill and than go back to radio if you know where they are by recon planes. When you go back to radio, this is valuable time and enemy should not be here when you call strike but instead your troops should be there. Or your team member will tell you "there is enemy around scholl building we need artyllery strike" so I must travel there and after that going back to radio? This is waste of time.
There is also situations when using binoculars for targeting should be better and more accurate, but second option will be usefull too.