I see them as systems. I don't care about truth here.
  Testability is a factor within one system and not a factor in
  the other system.
  They're different systems.
  I'm not validating/invalidating them.
  Nor am I pretending.

  Now if you want to get pragmatic:
  One is faith in a system that generally works well.
  One is faith in a system that does not work as well.

  I honestly don't understand the baggage.