Not my moral judgement, I think the creator of bitcoin was quite explicit in his (or her) disapproval of the finance industry and governments inflating the economy by injecting large amounts of money, and went on to create a currency with a fixed supply. It is ironic these futures are effectively leveraged bitcoins, needing central trust. I'm pretty sure Satoshi would not approve.
That said, I do question the value of cash settled pork belly futures when you are not going to buy or sell any actual pork belly in the future. If I were to write tax law, I'd tax it the equivalent of casino tax, at least.