I think they mean professional hauling trucks, like an F650. Vehicles used for commercial transport/utilities (i.e. US DOT, Uhaul, construction firms) are typically equipped with high-torque engines specifically engineered for towing.
This is where the issue arises: for one reason or another, some people want what they call the "best of both worlds". They want a smaller-sized truck with the same amount of power. To them, this sounds reasonable.
However to anyone into engineering, this is clearly creating a product for profit rather than practicality. It's a jack of all trades, master of none situation. A car is a tool, and a tool is created with a specific use in mind.
Sometimes I get desperate while working on my carpentry: I have to hammer one more nail in to finish my bookcase, but I don't have a hammer. I have a wrench, which will do terrible work but it'll get the job done. Yet my neighbor next door has a good hammer, I could borrow it from them for a bit. Now, what if I had to build a house? I'm not wanting a wrench then, I want my own really good hammer.
Same analogy could be made for Trucks and SUVs. I don't tow often, but when I do I can rent a capable vehicle. I don't need to own anything more than a Subaru Legacy at that point. Hell, maybe all I need is an electric bike if my workplace is close enough.
TL;DR there is no net-positive use-case for the average consumer to need a vehicle with over 400lb•ft of torque. It's just excessive.
What is being towed so often in your scenario?
I'm not talking about professionals, or people who take their boat out four times a week. That is a specific need for a specific tool, or vehicle. I'm talking about people who daily drive these things to the grocery store and work. So, the average consumer.