turbo wasn't changed. But fatigue was. I think the problem is that you get back too much when you get rest. I just finished a game where my starters were about about 80% at the start of the 4th quarter whereas, pre-patch, they'd be at 50%.
Still, the turbo mechanic may last a little longer - but I don't know if that's a function of having more fatigue later in the game or if the rate is slightly nerfed. Regardless, we'll see how it goes. But I consciously manage my turbo. Now, how will this affect abusers? We will see. I want to see how it works if I'm just jamming on it all game...