A no coach LCS uses the model and it’s not fair!

I know a coach who has been certified by another school in France, so she is not LCS certified (this is a fact). She uses Brooke’s model in her coaching and she explains the concept in events. (I come from seeing that she invited me to a conference with the title of the conference: ”How to achieve all your goals with Brooke Castillo’s model.”) I don’t think that is fair! I paid a fortune to be certified with LCS (you know that!) and I just don’t think that what she does is unethical, right?