Board Thread:Episode Discussion/@comment-2165868-20140211215751/@comment-26907321-20150926194410

I think it was kind of a reference to how on MOST episodes Kenny stays in the background, and there's only a few occasions you hear his "real" unmuffled voice. This was one of them. Albeit he had the mask on.

I think they had Stan make the reference because it just kinda cut to them doing their plan, and didn't explain who was taking Blanket's place. You just had to assume it was Kenny until he got killed and Kyle said "OMG you killed Kenny".