Seriously, VW loot system..come on.

[Prothscar]

Having to fight the NM multiple times to get the item you want is to be expected in most any game, let alone an MMO. What would happen if you got all of your bodies/weapons in 1 kill? You'd be bitching that there isn't any content in the game. It would change nothing, you'll bitch regardless. Guaranteeing the drop after a number of kills and having a chance at the drop before then is a fine middle ground.

Go fight Botulus Rex, Ig-Alima, Kalasutrax and tell me it doesn't require skill or engagement.