Braking is higher G but consider that the descent and landing aren't really nose-down situations and the braking part itself takes seconds. When taking off you

Braking is higher G but consider that the descent and landing aren't really nose-down situations and the braking part itself takes seconds. When taking off you have nose up for quite some time throughout the climb. Sitting backwards would make it pretty uncomfortable unless the seats are somehow redesigned (they'd have to be anyway to handle the different stresses).