For every action there is an opposite and equal reaction :-)
So, I believe the underlying etiology is there and can "probably" be found (if it is sincerely looked for). I think if one finds it with the intention of resolving it that might happen too. It can seem like the person with the problem is being "blamed" if it doesn't get resolved but, in a sense, that is correct because it is ultimately their problem and ultimately up to them whether there is success and how that success is measured even.
I think symptomatic behavior we don't like, the underlying cause can be found and the behavior "fixed" but I don't know that I agree it can/should/must be done with this treatment method :-) There's more than one way to skin a cat.