Fair call, but IMO there are a lot of huge vans being dragged along by tow vehicles (aiming squarely at dual cab utes) that are marginal to tow said weight at best. If your going to buy a 3500kg van get a vehicle that is capable of handling it. Manufacturers have a lot to answer for with their tow ratings.
I tow on the limit where conditions permit, that includes with my old Wakesetter boat which was 2700kg.
Let’s face it though, Maude and Claude nomad out there choose to sit on 80kph on a flat open road purely for financial reasons as they are saving fuel, I can cop someone sitting on say 90 or 95kph but those that are doing 80kph or below (and I have come across them going below 80!) on a straight flat county road are pests, overtaking ability is the primary reason I purchased my Y62 as there nothing worse ham getting stuck behind a moving roadblock when you’ve got no reserve to get around them.