A very good point to make.

I'm often surprised at the XC skiiers I meet who seem to treat the activity like jogging in the city. Of course they are going like mad and are going to stay warm, aerobically - So if I'm wearing tights and a toque and gloves running in the city, if something happens that forces me to stop, I can knock on the nearest door and ask for help so I don't freeze. On backcountry trails there's really no door to knock on. so if you get forced to stop so you can't keep going at the pace to stay warm in that stuff - you're in a world of hurt, and you're in a world of hurt *fast*. Something easily prevented with a sanely packed daybag like you took.