I agree to a point. There are situations where the RDS isnt going to be the best option, such as strange lighting conditions and long range shooting. If you set up for a 50 yard zero, you got to have a IS system for shots past 250 yards. For me I use a 25 yard zero and my 4 MOA dot as a size reference for targets 400 yards away. I will use my IS to aim with.
on surrounded ground, plot, on deadly ground, fight.