"Everyone I've spoken to over the years who has bought an SUV says they like being higher up, they like better visibility, and they feel safer on motorways and bigger roads.
They may get that visibility boost for now and at the expense of proper visibility for drivers in cars that sit lower than them.
In time (and it won't be long now), when most cars are sitting at the higher level, they'll need to go even higher to get that visibility back. By that point, it will not only be at the expense of nearly everyone else's visibility but also enters into a fun new category--limiting the drivers own visibility of shorter cars and most importantly pedestrians and anything on the ground in front of the vehicle.