I did finish the game six months ago, and it was great! I started a new game recently and I discovered that this enemy in Chapter 7 doesn't move and isn't accessible if you didn't use Wednesday or she retreated before you got to it. I don't know if that's intentional or not, but the other War Drones weren't stationary so I assume not. Other than this, the game has been just as fun as I remember it being!
Well, after reloading, it moved! The only thing I did differently was get rid of the flames on the left path, so I guess its behavior is tied to that!