A good in depth piece about a very unusual series. My own thoughts, to me this feels wrong as an animation. It should be live action, and it should be a single movie, not 5 seasons. I couldn't get through all of it, here are the reasons:
I've worked in a mental hospital with elderly senile patients, and with suicidal people, and people who just can't control their own actions, and it upsets me so much to this day (it was like 40 years ago) I just don't want to think about it.
Maybe I have too much empathy, I can't even step on an ant without feeling like someone stepped on me.
Or my average level of equilibrium is just a tad too depressed.
Finally, as an artist I find the art work ugly, probably on purpose but again, my personality prohibits me from enjoying ugly things.
But I am glad some people find it worth while. :)