i would say nay. if you're thirst after working out, drink water. what you need though, in some reasonable time frame, is nutrition - more than just carbs and electrolytes; protein.
i don't care for protein powder or shakes, but if you were to blend the coconut water with some quality whey, that would make more sense to me.
i would just wait an hour and make a proper meal. i'd be hungry by that point, too!