The person who wrote that sentence explained what happened, of course a real person wrote it, it's a blog post. Automatic surge pricing kicked in, like it does anywhere in the world because there was high demand and not enough Uber drivers. While the app is smart, it can't automatically detect when there is a hostage crisis happening in the area and turn off surge pricing...
Such an uninformed response from the likes of a Hacker News user is actually worrying. I thought everyone here mostly understood how Uber works, obviously not.