I think the "roll over" is a non-issue here. Everyone knows they are more tippy than a car. Well everyone who has half a brain.
Well, sorry to say it but there are a lot half-brainers out there. Daily I see people make idiotic driving decisions.
Have you seen the Frontline about SUV rollover incidents? I am not talking about people taking the SUV out for a jaunt to Starbucks and going around a corner too quickly. When there is quick reaction required to avoid something in the road (say small child, dead skunk or deer) and the wheel is turned quickly to avoid these, the SUV will roll. Even though you know the vehicle is more top heavy, over the vehicle goes often crushing the roof and killing the occupants. Do your own research online to find out more about this.