Is this really an indication that the Big banks will be more accepting Bitcoin?

I think they have resigned to the fact that there will be increasing demand for Bitcoin. With Paypal, Mastercard and Visa plus surveys showing that many retail investors are interested in buying bitcoin, even wanting to use up their stimulus checks on crypto. This is something they can't avoid and they'll just be run over if they keep on evading. Demand is coming and adoption is slowly creeping in. It's only a matter of time when their consumers will start demand for bitcoin or crypto products otherwise they'll just venture elsewhere.