Do you really think we are that dumb? We already func_detailed every balcony, every set of stairs, every doorway arch, and every little detail that was not a part of the core-map.
And we most DEFINATELY already func_detailed those stairs in that image. I dont know where you can go around assuming how the brushwork is made when you dont have the VMF source. If for some reason you think that those stairs are not func_detailed, I am here to tell you, they are.
There's no need to get so uppity about it. We can assume it isn't done properly by how the visleafs are created in game. I personally don't trust the in game visleafs as much as I trust the ones Hammer shows (available after compiling with VVIS once). But seeing as we can't use that, we can only assume from what the game shows.
Edited:
asdf, there was another page where you explained you fixed it. Fuck