Transfer Impossible Airports (MDL)

Good day all,

I'm a bit unclear I think on airports where it says "Transfer impossible".  I have a flight leaving MDL with 12 "From own feeder".  This goes against what I thought was possible, so I'd like some help understanding.  Thanks!

Passengers can connect by simply continuing on the same aircraft, and this works for every airport.

Removed, I looked further and found my answer.  Thanks!