I mostly agree with 0 here, I don't think it's necessarily been nerfed or changed in any way. It's always going to depend on the quality up top. Uptempo refers to your offense, so if you weren't playing FB, it's not likely you were doing a *whole lot* to fatigue him. Playing FCP with normal (if not FB) is doable with 72 stamina, you really just want to make sure you have good balance. Like you say, drichar is a great coach and knows what he's doing. If he has good balance, then ideally (from his standpoint) all youre doing running uptempo is increasing your turnovers and decreasing your FG%.
It isn't a terrible play, it can be a good shot, might be your only shot if you have an inferior quality team. But without FB to go with it, you're not putting as much pressure on his defense as you might think.