I don't know how many times I have to state the same thing. I suggest you read the page I am referring to before simply posting the same incorrect information again.
sweet jesus, apparently i'm not the only one who is stubborn.
I KNOW the page you are referring, right? i know it. And i also know that RAI you are right.
What I'm saying is that the previous FAQ states that terrains are not a part of the army.
They need to get rid of the FAQ, or update it.
Because otherwise anyone will be able to pick the FAQ and say "this prevails"
By raw (the pag. 62), you cannot field a RE in a tournament where terrains are already placed. It's simple as that. But I bet the referees will allow you to do it. That FAQ is a weak point and anyone could use it as proof.
IMO, the most (and probably the only) valid reasoning would be that:
1 - the FAQ says "warscrolls are included for those instances when a
spell or
ability allows you to set up the terrain feature".
2 - If a terrain feature is fielded for a reason different than spells or abilitiies, the FAQ doesn't apply.
3 - the RE is not listed under "allegiance abilites", so the FAQ doesn't work in that case, and so the RE it's a part of the army, as written in the battletome.
but
this needs to be the reasoning. To simply say "the FAQ is older" won't work by itself.