That's just it.
If by saying "the reticle to line up" you mean that the stadia lines are representing actual mils or MOA, then you are most likely correct. I'm not sure why that would be important at all if you have taken the time to gather DOPE, unless you plan to use a LRF and dial for every single shot. I have found that hunting conditions often do not allow me much time to range, dial, aim etc....
Using a SFP scope, your stadia lines at some particular zoom (depending on ballistics) will coincide with yardages. For example, I have a Zeiss Conquest HD5 2-10x42. I'm shooting a Sierra 7mm 175 gr bullet at 2554 fps. The Zeiss tool tells me the optimal zoom is 7 power. Go check it out. Sight in at 100 yards but be 2.3" high. The next stadia line down will be nuts on at 297 yards (just call it 300, eh?), the third line down will be nuts on at 393 yards (400?), then 497, 598. I can leave that scope on 7x, range the target and hold very effectively.
If I range the target at 1174 yards, I can dial down to 2x and hold on one of the stadia lines.
There is more. But...there ya go.
I have and use FFP scopes but not on my hunting rifles, mainly for the reasons already explained.