That's cool for replacement, but the weight of these things is in the X00 kilos range. This is not swappable like a laptop battery. It may weigh up to a quarter ton. =/
I'd see it as similar to a transmission swap, but more likely simpler.
The average person can't change a tire, or the small 40lb battery in their existing car. It's unlikely they'll try to change a full battery in their new electric vehicle.
As long as it can be replaced and upgraded to keep up with the battery tech, then that's all that's really needed.