I've never, ever seen a moogle standing anywhere inside the maze. Calling bullshit. It might be new, but it's definitely super random and would be exceedingly obvious if any of the thousands of us had ever seen it before. That's not exactly something that would pass us by.
I saw it today in like my 3rd run but haven't seen it since. He popped up in 2 different stages of the single maze.
Also, I wish the last stage of the maze was 3 gigantuars instead of 3 star quartz. I have them pouring out of me at this point