Bank Leumi have better and less complicated ways to get the money from the people.
Bitcoin transactions CAN be identified personally, it is not Monero or Dash, the bank is ABLE to determine who is receiving the transaction but it is a bit complicated - there for they prefer not to deal with this.
One day , not to far from now, when the cryptocurrencies will go mainstream and everybody will start using cryptocurrencies -> Banks will become like Traveling agencies or like Insurance agencies => OBSOLETE