Wrong and wrong. The vents stay open with the neoprene directing the water flow away from them. I have gotten no water inside. Also the drone doesn't rely on radiant cooling through the top og the drone body, but the neoprene does enough to protect the drone from heating up in the sun on a hot day more than it works as insulation. Again, I don't know what your issue is with this product. Like I have said, it isn't the most user friendly modification, but it does allow my drone to fly in the rain for under $100 with good after sale support. So both of your main issues are not applicable.