Regardless of whether or not it's the most logical location they could open, it's probably going to make them more sales than opening up another USA location, or somewhere further East. Also, regardless of whether or not there are other things that should be worked on, opening up an additional location surely isn't a negative thing?
They've given themselves a few months to roll this out, and I'm sure DO is large enough to work on more than one thing at once, meaning that they won't work solely on getting an additional location up and running, as they'd most probably be working on improving their service in other areas simultaneously.
Either way, props to Digital Ocean for continuing to stretch their locations, and I personally believe that this is good progress. It'd be nice to see some more locations that are further away in terms of latency, to give them a better global stance, but this is still progress and my personal thoughts are that they should be praised for stretching themselves a little further.