No worries! I'm personally not a stickler on grammer, I just know some people can be! I can certainly understand your decision.
It was just a minor observation in passing, so when you asked for clarification, I just re-read through the beginning for examples. I expounded more on that part because it's something that for me personally that was confusing, and that I was reprimanded for once at my old job. I don't think you'll have veterans calling up your boss wanting you to get fired over it! (long story)
I also didn't go through past the first screen mentioning the catacombs, since I was just wanting to give a few examples, so there may be other examples later in the game, since I wasn't trying to beat you in the head with it.
I hope it didn't come across as nitpicking or critical; I just tried to mention things in my review that other people haven't already said. ; )