I dont have the exact values of the cape but compared to the water cape or even the sara/zammy/guthix cape, its stats are very lacking for the 75 vote points it costs. It could be considered a cosmetic item but since it already has stats i dont believe that was the intention. If it could be buffed to be even on par with the current bis capes then it would be worthwhile to buy but currently it feels very out of place.