When I read that I immediately thought of "If you choose not to decide, you still have made a choice".
In my opinion, being a "Grey Jedi" is about as close to being atheist or agnostic as a force wielder can get in the SW universe. If the Jedi and Sith are religions then a "Grey Jedi" is someone who just doesn't follow the order of the Jedi or Sith. That doesn't mean they cannot choose a side or perform good or bad acts when the time or need arrises; it just means they don't follow the principals or dogma of those "religions". To me, a Grey Jedi is entirely possible.
This is pretty close to my thinking. Although I see the grey as more elevated, not so much neutral. You would have to be a step above a Jedi Master—or an enlightened master at the very least to maintain that balance. And what does balance mean anywaY?
The Jedi are attempting emotional detachment in hopes of allowing logic and intuition to rule their decisions. Being guided by the force instead of emotional decisions based on angst, or personal feelings. But while striving for separation from emotion, they are a fairly emotional lot if you watch their expressions and even a lot of their decisions are swayed by the passion of others...even one another at times. So there’s always a struggle, through which they’ve allowed themselves to become dupes of the Republic and do their bidding—so long as it comes under the heading of “Keeping the peace.” But where’s the logic or force intuition when these orders are handed out?
The Sith do the opposite and allow emotion to rule. They feel emotion is the core of their strength. However, they’ve turned to anger and greed, possibly the easiest path when seeking to adrenaline their emotions. Anger doesn’t always lead to wise decision making. In fact, they kill one another in their quest for power because there’s really only one throne and to question it, or covet it, or fail it on any level means you aren’t to be trusted and death is usually the end result. So the dragon is always sprouting new heads and cutting them off, feeding on itself in an ongoing attempt to find THE most powerful ruler of the universe.
A grey, in my opinion, would see the strengths and fallacies of both. It would likely be a very small number of force wielders because both Sith and Jedi would see them as a potential threat to their order...probably enemies looking to corrupt, or taint them because they dabble with their enemy’s philosophy. The story possibilities would be interesting because they would find themselves in the middle of the war while striving to bring about balance and convince force users to join them. I do not believe they would be like “Dr. Manhattan” and feel above it all, not get involved. Because if they truly were guided by the force—and the force strives for balance—they would seek to abolish the threat which sought to destroy the galaxy and keeps it out of balance. Which would have them at times standing against the stupidity of both sides.
At least that’s what I would do.