Here's a thing to look at.
The aim of psychotherapy that supports spiritual practice should best take the form of instruction - that is, teaching us tools of psychological inquiry that we can then, after instruction, take home and utilize in conjunction with our spiritual practice. This type of therapy has the advantage of both supporting spiritual practice *and* having a specific, time limited goal, so that it is not intolerably expensive.
Of course, this kind of psychological work would require a much larger understanding and aim than conventional psychotherapy, whose focus is on pathology and cure rather than transformation.
We pay for therapy. So it is actually a good thing that 'conventional' therapy is focused on pathology and cure, rather than 'transformation'.
'Pathology and cure' gives a focused, measurable goal. You know when it is time
to quit therapy, stop paying money, or when you can schedule fewer visits to the therapist because you are in less distress, and getting along better with family, friends, coworkers.
On the other hand, 'transformation' is a lifelong process. If you believe in
reincarnation/rebirth transformation is not limited to this present lifetime.
Therapy with the goal of 'transformation' would be never ending - and most of us cannot pay that kind of money with no end in sight. Most insurance companies will set a limit.