But yea, definitely easier to squeeze into tighter spots going backwards, and not that much harder after you've done it a few times.
Their argument for it was basically the same as the Army’s — with so many people working for them it became significant enough where it prevented a tangible number of people getting injured.
The other argument was that if you were getting attacked / mugged you could get away faster!
The focus should be on reducing the average emissions for each mile travelled — reducing private flights, improving electrified road and rail networks and improving the economy of commercial flights.
I would also wager that the political and high business class would also not face this restriction should something like it ever come to exist.