I agree your point. larger cars have great advantage in a crash due to crumple zones. And even though some compact cars has great crash test result, it doesn't mean they're safe enough to survive a highway crash since most if not all crash tests are done under 50mph.

BTW, just a reminder that pickup trucks are body-on-frame structure which is design for more towing capacity. Unibody structure on most modern cars and SUV's are safer in general. If you check this list http://www.iihs.org/iihs/ratings/TSP-List you'll see pickup is worse than even compact cars in crash test.