To be fair when I read "for LATAM" I usually expect it to be "for one particular country but we want to pretend it's for LATAM". (Not picking on this launch specifically.)
The countries are just too different, it doesn't make sense to treat them as a block.
They are different but they do have their similarities, specially financial services and solutions and alternatives that people use to pay for large purchases.
I was actually just reading about 'the Tequila Crisis' which might explain a bit about some Mexico specific elements to why banks are unable or unwilling to really extend credit to many folks https://www.hbs.edu/faculty/Pages/item.aspx?num=29099