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.