Long before the child molestation (or other scandals) put the nail in the coffin of my JW cult, I came to dismiss the whole "Satan challenged Jehovah' as crap.
Why? Well, imagine that you are challenged to play poker with someone who is omnipotent!
The idea that Satan doesn't challenge Jehovah's power is idiotic. Are those your cards? Holding 4 Aces? Or is it an illusion? Or are the cards marked in some fashion you can never figure out? Is the game real at all?
So, what? You oppose Almighty God and your whole debate depends on His Benevolence to play fair? Really? Someone who can influence any or all quantum events in a physical universe? In a way you can never discern?
The whole thing is absurd. Look for another explanation for Why Evil Exists...