It “works” for the same reason that home remedies work: unless you die, you are going to get well sooner or later, and most people attribute their recovery to whatever latest remedy they tried.
So, unless we run some randomized, controlled experiments, I’d say that the statues’ supposed effects are nothing but the placebo effect at play. But this thread is certainly funny to read!
PerryChase: What a vengeful god you’ve got! (said with tongue firmly in cheek).