It also seems to me like there is a false dichotomy here of either the T needing to be an inhuman saint, or otherwise the patient must be a great danger. Since no T is an inhuman saint it would follow that the patient should be ok with being regarded as a threat.

But this is absurd. The therapist must make reasonably balanced judgments about a client. If the T cannot do this, then the T is simply not doing his/her work. And I understand that some patients might work well with Ts who have anxiety issues, but I cannot see how a patient would NOT be harmed by a T who projected those issues onto him/her.