You can't "lock" something that doesn't exist.

[Joven]

Now you are reaching. You are thrusting an opinion upon me that I did not claim to have, just because I said being unable to play something means we are locked out of it. I was stating a fact. Not an opinion.

Unless you want to somehow argue how being unable to play something means we are not locked out of it :P

I would argue that just because we're unable to play as something it doesn't mean we're locked out of it, just that we haven't gotten to it yet. We aren't locked out of Garlemald or Sharlaya, both of which are mentioned in the story, we just haven't made it that far yet. By your logic we should already be able to visit those places because 'they exist in the story so we should be able to play it' and for us to not already be there right now means we're locked out of them. In fact we should already have access to ALL the regions mentioned in the story just because, heaven forbid, they lock us out of somewhere.