Ys, external solutions are always the most factually accurate. Writer B writing a line that contradicts Writer A's earlier line, production team not finalised their setting, the show creator reducting some earlier content, the old "keeping the same name, but changing just about everything else" trick. Etc etc etc, colour me bored!The difference being the external solution is almost always the factually correct one.
The internal solutions are almost always wild speculation and mental gymnastics to explain something that can't be explained that way.
Add to that how some people actually argue and get upset while discussing the "possible" internal solutions, and that's where it all gets really weird.
But this is a fiction we are discussing, and so although the RL rationals are accurate, maybe the Occams Razor blunting theoretical fiction questions belong here too?