I don't think you've got the weight of what i mean by grey
areas. Something which we are unable to handle but yet have to made
a decision.
Bringing Job as an example was a poor counter because you have to
know that God allowed it to happen and surely God had known that
Job will pass this test.
We have to see if we agree 'if God have known the
result of Job's test, before the test/adversity was
conducted.'
That's not my quote, got it from a apologetics website.
Personally, i'd say challenge the question and reason it until
you're able to conclude. It'll come back from time to time.
But it is important that a believer can overcome these issues in
his own abilities and capacity.
Cheers