That is misleading. Potatoes are ranked as one of the most satiating foods per calorie. The problem is people put a lot of butter/oil on them. Or eat them too processed.
I've been reading that what gives potatoes a satiety boost is that they contain proteinase inhibitors. These limit your appetite by disrupting your digestion. Maybe they are more effective as a weight loss food than the raw nutrition numbers would suggest, but for an athlete that wants to cut I don't think slowing your ability to digest amino acids is a good idea.
Potatoes are not particularly high on the satiety index (~33%). Brocolli and spinach are much higher at near 100%
https://public.tableau.com/app/profile/marty.kendall7139/viz...
I've been reading that what gives potatoes a satiety boost is that they contain proteinase inhibitors. These limit your appetite by disrupting your digestion. Maybe they are more effective as a weight loss food than the raw nutrition numbers would suggest, but for an athlete that wants to cut I don't think slowing your ability to digest amino acids is a good idea.