Why are the sockets on refurbished trains mounted into a protruding box that reduced legroom?

Hi, the refurbished 450s on the Soton to Basingstoke to London line have new electrical sockets mounted on the wall.

This has reduced legroom, hurts when legs are up against them and cannot be accessed by anyone if the 2nd (1st in three seat rows) seat is occupied.

Why are they located on the wall so low down?

Why are they not flush with the wall?

Why aren't they between seats or higher up the wall?

Why do they need such a big mouting box?

Are they in line with crash safety standards?

Is this temporary?

GWR managed to locate them in a sensible position and they have USB points as well as Power sockets 

Thanks.