again what would a single session of meeting with a great successful DI mean. Every person that randomly throws dice can have a great day, or a bad day. And same for DI;s. So what can be extrapolated from a single meeting,
Too many people extrapolate their 3-4 anecdotal observations into some sort of wide sweeping unwavering vote of confidence

Can someone who sets dice have a good day, or even a good few months in a row. Sure. But can they have a bad few months in a row??,,,my guess is YES.
And thats where the real truth is found. After a period of years...what are the net gains of the person claiming to be successful. And unfortunately these people do not come to message boards and tell us when they have had a bad run. They only come here and brag about the glory days they have had.