The problem with teaching CC CRM in my opinion is that the time for the basic course at the beginning of the career is too short, and the annuals are not enough.
But something important I got to realize, is that even if CC are not aware of it, they still integrate CRM notions in their work. They follow the courses, participate on simulator missions and group works with pilots, and by doing this they learn to use CRM principles without being aware of doing it. If questioned, they maybe wouldn't be able to put into technical words why they are acting in a certain way. But still, CRM is more and more integrated in our work as crew. To answer litterally to the question in the thread title then, I'd say no, CRM is not dead.
But I think that this question stems from a very limited understanding of what CRM is and why it is used in aviation. Maybe the correct question should have been "Do you think the bad relations between some CC and some pilots might affect good CRM"?
That's a good point - thanks, I will edit my original post