When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong." -- Arthur C. Clarke's First Law
Apparently there are a few who claim, think and who have convinced themselves that Reverse Speech is a pseudo-science that lacks any credibility. Not anyone to my knowledge who has made such claims has done a RS analysis session with a RS practioner to have first hand knowledge, expirence or training. Thats thier choice and rightlfully so.
Here are a few articles you may be interested in reading.