I have to call BS. If knowing possible outcomes is omniscience than we're ALL omniscient most of the time.
Having discernment and foresight is a long way from being all-knowing.
Knowing ALL possible outcomes of our choices is not somehting we all know, where did you get that?
Do you know that if you make a choice to cross the street that a car will hit you and you will lose your right leg?
God, if he is omniscient, knows that and he also knows that if you decide to turn back to get a umbrella that you WON'T get hit by the car, but God doesn't know WHICH of these choices you make NOR will he influence you in making them.
He knows the outcome of the choices, the far reaching outcomes.
It may not fall into YOUR view of omniscience but then again, God doesn't have to fall into our view of anything, unless he decides to.