He would have rephrased these comments. There is nothing shady about Bitcoin because it's just a currency. As a currency, people can use it any how they want. But there are some set of people who still hold this old assumption that Bitcoin is widely used for shady deals. I think what OP meant was that because of the government approval and the increase in big institutions, those people might begin to change their views about Bitcoin. I know people who assume that only government-approved investments are safe.