I've pondered this exact point many times, myself. I am not a JW but have a (girl)friend who is. Her health is total shit and has been for a while, starting about 2 years after baptism. (Co-incidence...?) She also belongs to a congregation where there seems to be an extremely high incidence of bad health and other associated negatives. If they are the J-man's #1, then why so much bad luck? And no respite in sight.
In fact, I am geting ready to go visit my squeeze in the hospital where she has been since yesterday. She woke all right but started having trouble early in the A.M. and her daughter called an ambulance to take her to emergency. There they found she was in a type of septic shock (!!!) and the family was consulted about resucitation and the like. Holy cow! Pretty serious for someone under the blanket of jehovah's protection. Why isn't jehovah watching over these people? Last time my friend was in the hospital there were no less than 3 other members of her cong in at the same time!
Looks to me to be a good reason/time to switch teams. Jehovah's team sucks!
Robert