I've been developing this thought in my head for a few weeks. Let's address this from a theists perspective and from the perspective of our JW relatives. Here it is, let's chat on it.
Question - Can god do wrong or make a mistake? Answer - No, god can't be wrong or make a mistake. It is impossible.
Question - Okay we as humans know that. Do the angels know better than we would that god can't make a mistake or be wrong? Answer - Of course!
Question - Do even Satan and the demons know that god can't make a mistake. Answer - Well yes I suppose so. In fact the bible says he knows he has a short time left. So that would indicate he knows god is right and he is wrong.
Question - So what is being answered by god allowing suffering? Answer - Everyone else agrees god can't be wrong. God allowing this test indicates he himself acknowledges he may be wrong.
Universal Sovereignty fails as an explanation, since everyone involved knows god can't be wrong. And if one human woman fell for the lie, then there was no need to allow 6,000 years of suffering. She could have been dealt with on her own since even the devil and demons know god can't be wrong.
If you believe in Universal Sovereignty as an issue, then you believe god is petty enough to allow 6,000 years of pain and suffering without his help, and 7 billion deaths upcoming. All over an issue that everyone involved with it are in agreement on.