What does surviving as a species have to do with discussing video games? Other than the fact it's done BY humans? I don't disagree that trying to take information that you know is a solid idea for guessing what's supposed to happen. It makes sense, but you keep being stubborn when someone presents you with information that challenges your views.
But you're using Smash 4's DLC as a means to ignore
Shadowwolflink
's point for a first party DLC in terms of Smash Ultimate, a different game. I disagree that we'll get a first party DLC character, because of what we've seen of the Fighter's Pass so far.
However, IF one was added, like another FE character, this doesn't break any statements made by Sakurai regarding the Fighter's Pass. If they added Byleth as an example(someone I don't even want), they could add a stage based on Fodlan or something to that manner, and Spirits based on the 3 main students and a few others.
Smash 4's DLC didn't guarantee new stages per character, let alone having a pass. The third parties were new series entirely, so Ryu got his stage and so on so Corrin or Mewtwo didn't need one. Smash Ultimate does state each Fighter's Pass character WILL get a stage, meaning if the last character was from Metroid or Donkey Kong, a new Metroid or Donkey Kong stage would have been made alongside them. So despite being from an established series, the information that
Shadowwolflink
and the rest of us know of the pass isn't contradictory to what we know the pass is supposed to have. The Plant ISN'T a Fighter's Pass character, so it didn't get a stage associated with it.
It does contradict the current pattern of the characters being all 3rd party currently, which is where I personally disagree with him. However there was no statement that it HAD to be 3rd party only, it certainly looks that way though.