He tells the truth. Stamina is almost useless unenhanced, and even ONE DO doesnt make it ALL that much better, 2 makes it so I ALMOST dont run out of End every single fight.
I think instead of wondering whats so good about stamina that makes people take it, you might think about what is so bad about the rest of the powers... like END COST!!!
I have a friend who has said he will stop using fireball because of the end cost. He took the power, and now wont use it. That to me is VERY wrong. I know part of the game is to ration your endurance, but yikes, the end cost of most powers is a bit much.