Fair enough. But we still need to contend with the problem (of potential training scars resulting from a practice or training activity not representing the way things will really be, or not allowing us to do things exactly the way we want to really do them.)
If you describe a drill of any kind to me, whether dry, live, SIRT, FOF, or basically anything, I bet I can identify potential training scars that could come from it. I think one has to acknowledge the pitfalls, then deal with them as well as they can under the circumstances, because the alternative is to not practice, and I think that's far worse.