Re: sounded logical but.....
I came on to say the same thing; the article could and should have been a bit more carefully written.
If it were the case then the Mount Pleasant car park would be truly impressive sight.
However the problem is real; there is neither the generating capacity nor the infrastructure cabling right down the users' premises (including substations) to cope with a widespread migration to electric - only vehicles, and the longer HMG ignores this fact the less likely it will be that any sort of target for electric vehicles will be met. As another commentard said the "optimum" solution would seem to be hybrid vehicles, resulting in a major reduction in the demands placed on the electricity supply system.
And why would anyone ask Royal Mail when their car park would be able to support all - electric vehicle charging? That's a bit like asking UK Power Networks why the post arrived late yesterday.