I think it’s a great idea.
For whom?
I'm also having a hard time seeing electric trucks as useful towing my 8000 lb camper. Already this year I've taken it to campgrounds 150 to 300 miles away. Some relatively level trips, some up in the mountains. Even with careful planning mother nature has her own ideas. I've seen our fuel mileage (diesel) average as high as mid to upper 20s for mpg while towing and going 65 - 70 with a tail wind. I've also slogged along at 55 fighting a quartering wind getting 7 mpg. So any range while towing you're really going to want a 2x or even 3x margin of safety. Or you're going to be trying to stuff your truck and camper/trailer into a charging station. Or having to drop the trailer in a nearby parking lot to get the truck into the charging station. For now, I think you'd have to really want to have an electric truck to justify having an electric truck.
I think it’s an incredible idea. Of course, the real world will approve or disapprove. Imagine what the aftermarket would do with a vehicle like this?