I don't think I will be able to say something useful as I, myself is kindah clueless about the point they were trying to make in this drama. If What i thought is correct, then they were trying to portray "healing together" at the end of the drama but taking the coping of the symptoms out of focus and Just showing "love heals all. " which is a very Incorrect, speaking from a medical point of view.
It is like a Soggy sandwich: it has every ingredients you like but you added too much ketchup and left it alone for a while and now it's just a soggy mesh.