News: SPT Splitit Partners With Visa To Help Accelerate Installment Innovation Globally, page-4

VISA's reach is already more than any BNPL company could hope for in another 10 years from now.
Even if the partnership is just for a year, this is going to eat into a major portion of the BNPL customer group with a VISA Credit card.
As of now no BNPL provider gives 'average buyer' over $5000 of leverage readily available with no additional paper work and extra credit checks.