I know you are not disagreeing with the general goal, that is why I think your language is less affective than it could be. You came off as antogonistic rather than mentoring. "Your reasons are not good enough". I think you are right. I think you could have done a better job of communicating your points. I think you should look up the rhetorical triangle. Maybe I am wrong. Maybe the things you say are more important than the way you say them.