This can actually be a bit of an annoyance, sometimes… If the socket is right next to the floor, or in a densely packed area, for example, it can make plugging difficult.
And if it does have a ground pin, it’s mandated that the ground be longer than the power pins, for exactly the reason you mentioned about G,D,M.
The recessed feature of F I do like, even if it makes the plugs physically larger than they need to be.