The implication was that the low salary selects for people who value helping people more than they value money.
That said, I certainly don't see therapists as profiteering, in the sense of trying to convince people to pay for therapy they don't need. They might plausibly feel threatened by AI, but they'd absolutely be justified in calling out examples like those in TFA.
Hot take: Therapists should earn more than most software devs.
Ahh, here we go; Indeed.com includes "Stretch Therapist", Occupational Therapist, Respiratory Therapist, Weight Gain Therapist, Massage Therapist, Care Co-ordinator, and everything else that includes the term "Therapist" in it.