No, you are not confused at all.
Sproul contends that many guys hunt with crossbows and Muzzys during the early muzzy season, and when they see a big buck, they don't hesitate to shoot. Then they tag it as a bow kill or some sort of thing. He will clarify what he meant, or you can look back at his posts to see what I mean. Probably easier to just wait...and he will tell you I'm sure.
I believe he was talking about the use of crossguns in early muzzy season in WMU 2G.