Problem is, nobody wanted it. They would rather wait to charge than turn in their personal battery, and later come back for it.
Would you want it? Would you turn over your decent, brand new battery at some charging station?
What's interesting is that they did it differently with the cybertruck. You can buy an additional battery that I believe is swappable.
From what I can tell they showed it off to get some tax credits, then decided not to deploy it anywhere (but keep the money of course).
Swapping a battery that weighs a ton and is part of the car structure is another story completely.
I think the more sensible solution is to have fast charging and a reliable network. 800 volt batteries and a good architecture enable incredible fast charging, and in the fjture it might be even faster. Combine that with cars with a lot of range, ex. 400+ miles and a 30m stop once 300 miles doesn't sound bad at all.
With battswap also being done at the lightweight end, eventually there will be convergence in the middle. But I think we have another decade or fifteen years to wait before standardization efforts have a chance and battswap can be vehicle manufacturer agnostic.
Battswap is an obvious way to lower the sticker price of vehicles, which is key to selling the next half billion of them.