Thanks for your comments, @beady. This has prompted a line of thought.
Which is more important: A job I can sustain or an immediate job that may not last? Because my wife works and I'm on a disability pension I have the luxury of time.
Stressful situations trigger meltdowns, self-harm and suicidal ideation. I also have bipolar, and a meltdown could also trigger depression.
In short, I don't need a job immediately. Furthermore, a poorly chosen job could result in additional damage to my mental health, decreasing the likelihood of long term employment prospects.
In view of this, and given that the reference refers to my strengths while implying my weaknesses, I think it might actually be a useful tool to winnow out the suitable from unsuitable roles and work environments. I might use it and look for work with patience rather than my usual obsession.