I'm actually of the opposite opinion. Get it as low as possible for speed! The rear sight, if visible will only project into the lowest part of your field of view and will be altogether out of focus as you should focus your scope (especially here, but also in general- which most folk don't) so that both eyes are focused at 110-200yd/m . That way when you bring the rifle up there's no delay on getting on target, and no requirement to (horrors) close or squint w/ the off eye.
If you jack the scope up much, then either your cheek weld will suffer, or the pad on the comb will preclude iron sight usage w/o its removal. Quite the bother.
The whole concept of a scout rifle is a fast, hard hitting rifle that's fairly accurate so that the package is suitable for use from 25m to 300m or so on big things. Sort of a big bore CQB rifle. The package should come up on target about as fast as a good shotgun, but w/ instant target magnification (just enough, not too much!), hence the downrange focus, optimal head placement, and (hopefully) a fairly light, well balanced platform.