In my opinion, there is vastly, vastly more for Hive to gain by successfully having a stablecoin than the costs. I would go so far as to say that scrapping it would be one of the stupidest things we could do.
In fact, greater volatility in Hive is itself a gain - higher volatility generally also means more profit. Volatility is only a big problem if you're trying to use it as money or if you have a short term outlook.
It's not just a stablecoin we are getting, but a basic DeFi implementation along with it.