Normally I would agree but the need for this market on Hive is higher than normal chains because of the way our governance structure operates. We've always had horrible liquidity and these perps are allowing anyone to get 10x more exposure than they would have been able to otherwise (for even less slip).
The biggest threat I can see is pumping the spot market on the cheap to push around millions of dollars in leveraged derivatives. This isn't a problem so much for Hive as it is all this money in the derivative market. I do view this development as a big net-positive still, but the suspect behavior is cause for slight concern and further investigation.