That was the point of my previous message. Noting that I was not using the same definition of complexity.
Using programming metaphor (which doesn't apply well to social games like RPGs), I was calling "complexity" the difficulty to code a program that allows users to play the game, and "depth" the difficulty to code an AI that play the game cleverly. While other peoples (like you), would use "complexity" to refer to the second one too.
[Which makes Go and Chess very low "complexity" games but with very high "depth"]