It is planned obsolescence. I'm quite familiar with software development and its realities. They knowingly built a game that won't continue to function in multiplayer after the plug is pulled.
In any case, you and I aren't going to agree, but I take issue with their definition of "full offline" for the reasons we've already discussed, and I'm disappointed that the answer I found in this thread is that they're not interested in adding LAN to this mode.