AtomKraft,
I think you deserve a medal for the patience and moderation you have shown in this thread.
A steeper deck angle does of course increase the horizontal component of the payload, and therefore place a greater load on whatever tie-down/locking system is being used. Were this not the case then Airbus have wasted countless millions in modding the nose gear on the A330-200F to reduce the deck angle from about 1.6° to 0.7°. This relatively miniscule reduction in the inclination of the deck is sufficient to decrease the horizontal component of a 5 tonne pallet load from a level that is unmanageable by handling personnel to a load that they can (literally) handle.