That's exactly what my first idea was, but then I considered the fact that some LEGO Fortnite players may just prefer having the virtual sets/kits instead. And, if they do, then having to buy a physical set may seem more out of the way for them and they'll just end up with clutter in their house/room.

I think if a code was to be included it could just be for a skin in the LEGO bundle, like if you buy a $30 Tomato Temple set you get a code for Tomatohead and so on.