They might not need it if it didn't already exist, but since it does they might need to embrace it / adapt to it... also, taken at face value, some players such as Visa [0] claim it would aid with cross border transactions. "Helpful" could also apply to the users, not necessarily to the current providers they have been forced to deal with. For example, deposit instiutions that allow for USDC deposits while paying out much better interest rates, and even allow USDC to be used to pay for debit care payments are "useful" as hell to me, if not the bank I pulled my money out of (to deposit in various crypto custodians like Celsius and Crypto.com for yield).
[0] https://cryptopotato.com/visa-announces-layer-2-payments-cha...