I/my business have owned 4 panel vans. One was an IVECO that had a 5+m long by 2+m tall interior. I'd much rather haul a tall load enclosed. If I ever needed to haul something taller, I could always rent a pickup or a real truck, and not being saddled by the pickup's shortcomings everyday.

Pickups have their uses, and I never denied that, I just say that most pickups don't do pickup duty, and that a lot do panel van duty.