I have not seen any evidence to support this claim.
Just because some good players re-state things that have been stated in the past does not make those things true, regardless of how often or loud they may state them.
Lots of things some top players and good instructors sometimes say (especially in the past) are simply not true. Here are some examples:
- throw and spin transfer don't exist or aren't important
- a closed bridge is better than an open bridge, especially for draw shots
- a softer tip and LD shaft let you put more spin on the ball
FYI, many other pool myths that have been debunked over the years can be found, along with supporting evidence, here:
Top 100 Pool and Billiards Myths ... Debunked, Busted and Explained
Enjoy,
Dave