It may have made sense to try and raise more. There appears to be a land grab going on in that local versions of stripe are popping up in other countries. The quicker they get to other countries, the bigger their business might be as with payment providers there are switching costs.
The best practice for dealing with clones seems to be buying up the most promising clones in each of the larger countries. If there really are successful Stripe clones in other markets, I wouldn't be surprised at all if Stripe raised a series C next year and bought some. It's much easier than setting up operations from scratch everywhere.
