It seems that larger banking institutions that discover the harsh truth of bitcoin always being superior to fiat made Visa cower and give in. Well honestly this is a good move not only for the people who invest in cryptocurrencies but for banking institutions as well. This could give them an avenue to earn more money basically but something that wouldn't allow them to exploit the common people, which is of course bitcoin.
Brazilians already have a culture of receiving card points, miles, discounts. And accept cryptocurrency with their credit card too.
Visa is no stranger to making headlines in the cryptocurrency space. In an attempt to portray its pioneering status as an intermediary for traditional and modern financial culture, Visa last month purchased its CryptoPunk NFT avatar for 50 ETH ($150,000 at the time of sale).
So basically what's happening right here is the fact that they are hoping to create a difference in the banking world by being one of the institutions who are much more friendly towards cryptocurrencies, compared to their peers who interact with bitcoin and cryptocurrencies with tooth-and-nail. As you have mentioned, the fact that Brazil has a history of alternative modes of payment, this will work well in their favor altogether.