Since we are all taking sides, I want to play on Winnie's team. I agree that 404.1 says: "circuit breakers used as switches". This in itself recognizes that a circuit breaker serves a different function (overcurrent and fault protection)unless it is installed for use as a switch. A GFI serves a different function (ground fault protection) unless it were installed to serve as a switch. I find it hard to believe that a GFI mounted in a soffit was intended for use as a switch.

And as HotLine 1 points out, P&S makes a combo unit: a GFI with a switch on the same yoke. If a GFI is a switch, then why do they make the combo unit with a switch attached?