If you're shooting zero out at distance, not using dots or dials, that wouldn't matter, right?
On some scopes it does.
If you take an older 3-9 Redfield and back the power off from 9 to 7 powder and you just raised you POI by 2 MOA. Most shooters never notice this because they only shoot on either the highest or lowest setting, which will typically have the same point of impact.
I haven't tested the particular scope mentioned in the OP to see if it suffers from this affliction or not, but it's a common one.
