For the record, I agree that Neutral players should not get the shaft in terms of gear. After all, this is a story based game and you are intended to have the freedom to express your story however you see fit. It doesn't make sense that you should be punished for not fitting into 1 of the 2 archetypes naturally created by the light/dark side choices.
If you really want to take to the realm of plausibility how could any physical item be restricted from use by a person with particular moral disposition.
Furthermore, I'd like to add on a personal note that it is frustrating that the game displays your total light and total dark side points achieved separately. It's a stigma that I'm sure most people would like removed.