How many % of PWS who were guided by him did not achieve fluent speech? You dont know? Well the coaches dont make such statistics public. They show just the success. There are many good speech therapies but not a single one cures everyone. Our brains are different, our stories are different. Do you know what can happen? People will try, fail and feel like a peace of shit because "everybody who try this and that will achieve fluency" but they not. It the worse case they will loose money as well. So dont spread this "everybody can achieve fluency" agenda. This subreddit does not like it.