As someone who is chronically mentally ill and unlikely to recover after 40+ years I can fully empathise with those who bemoan “time limited support”. I think the expectation under the “recovery” banner is that people are ill for a short while and expected to make a quick recovery. Support beyond popping pills and baring your bum for a depot is based on that expectation. You are expected to get better within that 6-18 month time frame in terms of getting more than medication based support.
Unfortunately the mental health charities have also adopted this approach and much of what they offer is geared to those expected to have an acute and brief spell of mental illness. There is very little for those with long term illnesses.
The recovery team I was under knew I needed more ongoing support but the junior staff that interacted with me had their hands tied. To the powers that be I had been patched up a little and although deemed by a pdoc as “having limited ability to cope independently in the community” was expected to get on with things.
The other issue is that often people with chronic mental illness have problems affecting them rather than being a direct nuisance to society and it is the latter which pdocs etc are strongly focussed on . You can have limited functioning etc but that’s ok unless you annoy or disrupt general society. In that way there is a strong basis to the claims that psychiatry is ,primarily,as stands, a vehicle for social control as opposed to a vehicle for care and support of the distressed/ill individual