[ QUOTE ]
Because the hand begins at the flop.

[/ QUOTE ]

the only reason for NL is to easily get it all in before the Flop. This is retarded and pointless in omaha because the flop COMPLETELY defines the strengh of your hand. starting hands are still important, but great starting hands that miss the flop are much worse in omaha than in holdem, where strong starting cards can get you alot further with no help, hence the +ev gained from going all in preflop in NLHE, much less ev doing similiar things in omaha