I've been in a similar situation - dark road early in the morning, fresh construction and asphalt oil... raining and raining... concrete divider, and I'm right up against it...
I come around a corner, and BAM! due to the temporary pavement (no drainage), there is this massive puddle of water in my way, and I have traffic on the side of me, so I have to go through this... I didn't swerve or anything and it wasn't nearly as bad as the video, and I made it through, but it was really freaky... My point is that depending on road conditions, you may not see stuff like that until it is too late, even if you are the most alert driver, because we can't see everything. So go easy on the guy... I'm just glad that they didn't have massive damage or seem too hurt.