Alternate Reason Wooly Doesn't like Looking in the Mirror
mlepro on the DreadXP discord pointed out,
Amanda didn't see Rebecca's actual body when she looked in the mirror, so why would Wooly see Marcus's actual body?
I think he doesn't like looking in the mirror because he knows he'll see what he really is: a monster. This isn't to absolve or soften Wooly mind. Just to hammer in how cowardly is that he would ignore his guilt and still go down such a path.
Thinking about it, doesn't Wooly sort of treat the mirror the way he would treat someone who's guilty but refuses to admit? He avoids the mirror. Edges up to it, doesn't look directly at it. Just the way he would avoid guilt, only indirectly acknowledge that guilt.
And then, maybe, if he's feeling very bold, he would face the guilt for one moment...and then hastily retreat. Just like he does with the mirror in the tape.
Maybe Marcus's body is in a pod like the others, but because of the weird psychic energy of the tapes, Marcus's guilt manifests in the form of his mirror image.