I would find a therapist who "reprimanded" me untenable, but I have never had one give me a hard time about quitting. Usually the approach I have seen and heard of is that the therapist will wish one luck with the new one and perhaps will want to talk about the things each party thinks went well and then tell the client they may come back if they wish in the future. They cannot make you have more than one appointment (they technically cannot make you even have one).

Good luck with the new one.