To me the those three words are unambiguous in terms of meaning. Seems like people are talking more about some form of withholding judgement.

I find the UPR concept to be emblematic of therapy, in terms of the centrality of calculated behavior as an alleged tool for healing. I see it as requiring a kind of doublethink -- knowing the therapist is not being their true self nor spontaneous, but putting this aside and pretending they are. Also I found that in practice this kind of role playing just caused a relational mess.