The refueling ban has nothing to do with being "green". It was another attempt to create more overtaking on track by reducing the amount of position changes acheivable through pit strategy.
But if you want to keep your anti-green knee-jerk prejudices, don't let yourself get disturbed by facts...
EDIT: If I remember correctly, the re-introduction of refueling in the mid-nineties was due to an attempt at "improving the show" as well.
But of course, in mpicco's history of F1, even the traditional refueling ban during the 80s and 70s (with a one-year break in the early 80s) was due to the greenies...
EDIT2: As most of the golden eras of F1, the Lotus days, the Senna/Prost rivalry and even parts of the Schumacher/Ferrari dominance happened under the refueling ban, one could say that refueling is against the nature of F1 and better suited to American series.