My long term T (the one I had many a problem with - but over it now!) was trained in REBT. She specialised mainly in treating people who had OCD. I did not have OCD. When she applied her method to me I often did feel very invalidated and criticised just for having feelings. It might have just been me and my experience of REBT, but it was pretty awful and, for me personally, very unhelpful.
I see it as a reasonable way to deal with everyday non-urgent worries - but I wonder if some T's think they can apply it where it's not appropriate (effects of trauma for example). That's when it's not the right thing.