I think a great many say it. I am not certain they mean it, but from what I have seen and heard, it is more usual than not for therapists to say they care, they like the client, etc. I have gotten some to cry while testifying because I suggest they do not care and more often than not, the crying therapist responds by saying they told the client they cared.
I then go on to question how their actions support that, but, the therapist does often claim to have said it.