@noobchicken i think part of the healing God's oracle effect actually was deaging so rather than stop it maybe the cheering would cause him to deage much more quickly, assuming the deaging wasn't really a con like saike's mental stress and more like part of the activation condition.
on the other hand, if the deaging is indeed part of the oracle as a means of activation, it could make it so he keeps deaging but the buff in strength means the god spends less energy(years) on his healing and so deages a bit less than he normally would (makes it more efficient instead of just increasing every effect)