You're projecting an exclusiveness that is just not there in the quote. Nowhere does it argue that this corporation should be the only one helping.
If anything, "this kind of technology" means the opposite of exclusivity, namely that Coinbase is part of a larger system than themselves, made of multiple corporations and other entities, and the people themselves, using this kind of technology, which it is claimed together help the underserved.
Or are you trying to argue that this for-profit corporation, or all for-profit corporations, should not be aiming to help underserved people?
I agree it's not incongruous, but it can be seen through different lenses.
Just because something doesn't contradict your idea of a hard right-libertarian, doesn't mean that it is a hard right-libertarian view.
You may read it as "identifying an underserved market", but you have start from seeing the underserved as being a market to think that way.
Another reading is to think there are people currently deprived of basic rights to low levels of personal property and interactions that most folk already have and enjoy, and the corporation says it exists to make those rights available to more people in a more egalitarian fashion than the currently broken system permits. That would make it left-libertarian, albeit the market-oriented variety.
Good reminder that non-profits, rather than, say, pharmaceutical companies, auto manufacturers, agro-chemical companies, logistics companies, etc. etc. have been the source of the leaps and bounds improvement in human welfare over the past two centuries.
