That is the problem, one does not see the hazard until too late. But there should be a pavement clear enough for a wheel chair to use, simple.
If a car or anything connected to the car, prevents a wheel chair user using the pavement, that is clearly wrong, and have been out with my mother who was an amputee so always used a wheel chair or mobility scooter, I know the problems when one car stop one using a drop pavement, and one has to try and reverse up to the last one.
It means the users go on the road, not only when there is a car poorly parked, but all the time specially around corners, as it is so hard to reverse up. But it is not only EV users, people park their cars where there is a space, and councils are not good at ensuring there are drop pavements where required. Where I live a wheel chair/mobility scooter user has to travel on the road as when the pavement ends there is no ramp for them to leave the pavement.
And I am guilty, I will park my car on the road in winter, so I can be sure I can get out, I leave as much room on the pavement as the grit bin leaves, so if the user can get around the council grit bin, they can also get around my car. Summer I park on my parking area, I can have four cars parked with ease, but on a steep hill, so can't get out with snow or ice.
But this is nothing to do with being an electric car or not, if anything an electric car makes it better, as one has to get it to a charge point so can't just park it where one wants.
I have never tried, but I assume the lead is in some way locked into to the socket so only the owner can remove it? One would not want it where some one could steal the lead, or unplug it so they could charge their car instead?
)
but in real life that cable is often a tangled mess, and the charge point is right outside the personal exit door, and I know I have walked out with an arm full of stuff so you can't see the floor right next to the door, and got the cables tangled up in my legs, as yet not fallen, but it is an accident waiting to happen.
and if covers are used great, but the problem is covers are in the main not used. It is not really anything to do with having EV's or not, it can just as easy be a window cleaning hose pipe, or a broken slab, but the inconsiderate actions of a minority is likely to cause problems down the line.
. You got one thing right though. I DON'T see it as a big hazard. 
