Bitcoin price doesn't depend on bank's minds. If they all hate bitcoin, why most of them bought crypto-exchanges, or cryptofunds. On mass media they talk that they hate bitcoin but after that they buy it.
That is there strategy to encourage those panicking people to sell their coins and taking advantage on it. Crypto is now a huge market and of course many were having interest towards these. Banks will move to accept the system as digital currency is widely used for now including billy's payment which they can also benefits from this.