No, it was in a Dodge 2500. 2wd only.
Well, like you said when only half of the wheels are in the water, the other two are not. You can still move about (if we are talking left and right) but the problem is people don't think it out. Car pulls right, they pull hard left and keep left even when out of the water and that's where they over correct, and spin like the Lexus driver I saw. You can still direct the water with the wheels, and accelerate to keep it in line. I'd almost like to say it's like rev matching, where you need to estimate what will happen when you're out of the scenario.
In my truck when it happened, it was fish tailing for a good three to four seconds, with intermittent waterfalls of water all over the road, on both left and right sides. However, I have gotten a close call in my other car, Taurus (with even worse tires) and that one pulled me hard right, and it was a similar situation of going over a flooded bridge.
I don't think the issue was aquaplaning as much as oversteer then underster, where he may have overestimated where the water was. Rosberg was complaining of it all day and maybe we didn't hear it from Jules, or maybe it was the tires he was on had met their end.