I believe that therapists are, by the very nature of their profession and training, dishonest and inauthentic. I also don't think it matters.
With self disclosure, I never thought it was them making therapy about them, but I never understood the point of it unless it was their off-the-mark attempt to get me to bond to them. I did not care what they did in their own lives or what their opinion on any thing was and never saw how it had anything to do with what I hired them for.