Ooh. I used to work at a ppace where back in parking was a requirement for security reasons. It is simply easier and faster to leave the place in case of any big problems.
Also, look at this place
https://www.plugshare.com/location/248833
Diagonal parking with rather short cables. Clearly designed for front located ports.
Everyone just drives the wrong way and backs in. First time I went there I tried to do it the right way and, oh boy, what it took me to back into that spot.