Re: Its a weird one
That's quite charitable towards Apple. They have a history of borderline-gaslighting the user when people start noticing their product limitations, like claiming display replacement issues on iPhones were down to shoddy third party components until someone took the time to swap them between two brand new iPhones.
In this case, the throttling is less likely to be immediately attributable to the OS than reduced battery life or crashes (caused by an aged battery being too weak to support full CPU speeds) and could easily be attributed to poorly written applications. This insulates them from immediate negative publicity and the risk of having to pay for bulk battery replacements. As per usual, they're fairly arrogant about the possibility of being caught in the act.