Because nobody wants to buy a truck like that. Even in the 80s, column shift manual was an endangered species because it sucked and nobody wanted to buy it. :P
Power windows are now cheaper and lighter than manual. Automatic trans is demanded by the market and CAFE.
Bluetooth is not standard in a fleet truck but it may soon be legally mandated by most states so it’s not like the makers will get a choice.
There is a market for manual transmission trucks.
I was raised poor. A truck like that would have been like a Cadillac to me. Now I can afford what I want instead of what I have to buy. The mfrs have neglected the low end of the market for the high end. Henry Ford had the right idea, make a car that everyone can afford, but the company that bears his name has forgotten that.............