Those guys are not Bikers.  No biker would have done that, regardless of what type of bike they ride.  I Ride a Ducati 1199 Sport bike, a Honda CBR 1000RR Sport bike, and a goldwing touring bike.  On the street, they are all ridden the same way, with respect to other drivers, and caution to keep my own skin intact.  Ont he track is a different story, as a I will push the edge every time...
Please, DO NOT lump everyone who rides a "crotch rocket" into one group.  Not all of us are idiots, and many of us have respect for other folks, and the rules of the road...
that said, had I been int he SUV, I would have done the same thing.  Do not threaten my family in any way...