Rivian already announced new models that may be closer to that. In the meantime, think of this as differentiation: keeping their premium models relevant next to more mainstream models. I hope it works.
Also think of it similar to Tesla when they used to update technology more regularly, especially to “Plaid” versions of model S + X. I believe Cybertruck included higher voltage wiring and charging that could really benefit all models
Silverado has a proper bed (at 5’11”) and the mid gate folds into the cab for around 9’ of length, and loads of range. Affordable is NOT going to go together with range at this point. Though typically if one needs the bed it’s rare to also need the range in the same vehicle.
I think Telo is on the right track, I think they’ll blow away the current ETrucks if/when they make it to market. Specifically in the trades since they’re more affordable and configurable. I could actually see someone buying a fleet of these even over the F150 lightning pro.