This still weird to me, because in the "newer" angle the grey boom doesn't look that big, also after he walks away in the longer version it's like it's all normal. This is my thoughts, he did record this "live" but forgot his "lines" so they chromakeyed him in for a second take which is where the mess up in the mics are at, but then when he turns to walk away the second take isn't there it just runs into the "live" version.

I could also be wrong, this whole thing is wacky and those are some huge boom mics at first only to shrink when the camera is pulled back to watch him walk away.