Their perspective is pretty interesting, unlike MasterCard which attacks bitcoin every chance they have.
Yes, they at least sound open to its usefulness. Having a well know and used payment processor like Visa may be the key to mass adoption, not necessarily just merchants. Think about it, it they will work with btc, the merchants may not even have to do anything differently! Just swipe a Visa, and select to pay in usd/btc, visa takes care of the conversion if the merchant just wants fiat! That would be revolutionary!