I think that's a little bit much, honestly. There comes a point when you're walking the line between warning oncoming traffic, and blinding the snot out of them. During the day this thing would be very easily seen, which is good, but at night...holy shit. We run slicktops with about 60% of the lights shown, and I've never had a problem clearing an intersection even during the day.
I really like the liftgate lights though. Neat way of maintaining rear-facing warning power with the gate up. Our rear deck lights are mounted to the ceiling (as opposed to the liftgate itself as in this case) so they are always pointing rearward even with the liftgate up, but they are always in the way and RIGHT at eye-level so they blind you. I like this solution much better.