I am sure that for some companies 80 miles is fine, especially in places like central London. Amazon is already buying them for some areas.
With new batteries and other options coming out the range should get larger over time.
What I would like to see is full battery packs that can be pulled out and pushed in to a different van. That would mean very fast change around and the batteries can be left to charge when needed.
Renault had a system like that at first, and you had service stations that you drove onto and a robot removed the battery underneath and replaced it.
Didn't get very far with development though.
Battery tech will come, but at the moment for the longer distance use cases it's not ready. And I imagine it won't be for another 10 years or so.
Cars are different. The range is fine, the charging speed is mostly fine. The cost is not.
Also, £0 ved needs to go too. It's just another perk of being rich. If you can afford one of these fancy electric cars, you can afford to pay VED.
It'll happen, once the government starts losing out on revenue.