"Do not withhold good from those to whom you should give it if it is within your power. - Prov 3:27"
By the common Christian definition of God, EVERYTHING is within His power.
Every explanation of God's permission of evil (including the JW one) without intervention, seems to ignore this basic scriptural tenant?
Remember the illustration used that God's permission of evil was similar to allowing a child to have a painful operation to fix a broke bone? So, OK, you might have to have the operation for the long term benefit of the child, but do you cease to do good and make it as painless as possible? Would you withhold from the child anaesthetic? Would you deny them painkillers. etc?
Even if JW doctrine on the universal issue was correct, is there really any reason why God couldn't help out and do good in the meantime, give us a cure for cancer for instance? If it is in His power to do that, would it make any difference in settling the issue as to whether man can rule himself? The test (according to the doctrine) is about sovereignty, not medical knowledge! So if providing the knowledge doesn't violate the issue, and God is withholding this good from us in this way, he is acting immortally by His own standard as stated in the daily text...