I am racking my brains on that one BPF.
I suspect that and the low voltage light have been a compulsory ADD for some 11 years now. I am sure A and C can confirm or say I am talking rubbish. They have always both looked like an addition in all light aircraft I flown on G reg. The N reg ones I have flown haven't had either.
And as for walking forward in a tommy the door would get in the way for a start you would struggle to get round it with the prop wash even if at idle so something smells fishy to me anyway.