Some of us did a lot of reenactment over the years so we are aware of the layered armors and how they were worn or better combined into heavier armors.
When you look at the armors in the game you can almost always see various layers like gambeson, mail and then a coat of plates for example.
I did notice and I like it a lot that you can clearly see on the model that there is clearly padding under it. I think maybe that was what gave me the idea. Though I can see that for some players it could add a little too much complexity especially those who are not familiar with medieval armour and how it was worn.