Mike, if they tried to enforce that statement then there would be no IDPA. Less than 20% of the shooters I know use "full power" loads. That 20% is made up of those that use 9mm Blazer or white box. I know of one CDP shooter that uses factory ammo.
It is not a rule, but a "mission statement".
The mission statement contradicts the Power Factor rule. Most factory 230 gr ball ammo has a PF of over 190. Typical 115 gr 9mm ammo runs a 138-145 PF.
SSP and ESP would be a 9mm only Division. Why would anyone shoot a .40 in these Divisions?
Not picking on you, but you are not living in the real world of IDPA.
I have advocated having a Major and Minor PF scoring system in each Division for years. Minor would be scored +.50 sec. and +1.50 sec. Major would be +.25 and +.75 sec. I would even split CDP into two PF. Minor would be 165 and Major would be 190 for those that want to shoot a manly load. That would make things a little interesting in CDP. A 230 at 718 fps or a 230 at 826 fps might be fun.