Definitely - from a quick flick through the pdf, I think Willis at various points mentions that the therapy/exercises aren't to be taken competitively and that doing less is preferable to overdoing it. Alexander Technique seems good - I know someone who trained in it, but haven't yet sat down myself to take a proper look at the principles, aside from what she's told me about them.
The overemphasis on results and achievement seems to crop up everywhere (unsurprisingly perhaps given our world) - blighting many a yoga class for example, and feeding into the idea of therapy as just another thing to tick off the list, "OK, I've done it and I'm well now" etc.
Even at the gym in fact - when I go, I see so many people with tunnel vision on completing a certain number of 'reps', with no concern for form or the fact that their back or knees are going to be completely shot in a decade's time (or less).