I think there was something very wrong with that programme...they were tackling the effects of what must be a psychological problem, without actually dealing with the causes of it.
The woman with the goat struck me as having a serious personality disorder - she seemed lonely, and actually said at one point, "They're all I have".
Without understanding and tackling why she came to live like that, she could easily return.
And the chap who was hoarding, definitely needed some form of counselling.
I, by the way, have no training in psychology, so everything I've written may be pure nonsense!