Very good questions for a JW.
If they knew their doctrine, they may argue that he had to allow it to play out so that all could see that satan and Adam/Eve's desicion for independence didn't work.
BUT.... This is where my questions about satan may come in to play.,since leaving I have stated that it was all a farce, how could a god say it was fair to compare being a robot worshiper of him, to choosing independence, when he immediately made them imperfect, made the earth difficult to work, introduced disease, temptation, sin, evil etc etc etc THEN said, well let's see how you get on! Hardly answers the universal question of sovereignty, how would they have got on had he not tainted everything he had created!
I'm an atheist, so this is a matter of reasoning and logic in talking with believers, but for those still pondering, it's a good point, especially in conjunction with your very good questions.