For me its really simple. I enjoy severe weather and enjoy watching it and following it. There are two ways to watch severe weather: Satellite and radar imagery, and in situ documentation via video. The latter requires severe weather to interact with human beings and their belongings (Hurricanes must hit land to become youtube viral videos. Tornadoes must form and plow through things to become youtube viral videos). Now if you ONLY enjoy the former, then the morality argument holds weight. But I know for sure nobody here is just here for the satellite eyecandy alone....we like to see the power in real life (and if you say you don't, well I simply don't believe you).
We are all pigs in the mud here. That is why the morality debate to me is pointless. You can apply this same line of thinking to watching football, MMA, boxing, bullfighting, etc.