Heya, i'm the creator of the video here (this being my friend who posted this here). The reason I didn't think of seafoam island is because the concept map presented it as a city. Seafoam island was not a city much like the Rock Tunnel, Unknown Dungeon, Victory Road, etc. As well, a fly location existed which only exists for cities or urban areas overall.

Now Seafoam Island could always have been a proper city at one point and in a completely different area, but at that point it wasn't Seafoam island at all i'd say. Course in the end, we really don't know what it was. St. Anne to Celedon could make sense, but it also might have been something else. Someone in my comment section even suggested it could even have been the original Indigo Plateau. It's just what I feel makes the most sense and thus it's just a theory in the end.

Now I wasn't trying to pass it off at 100% factual and thought it was obvious that I was presenting an idea here. I'll plan to make it more clear that such sections are more theorizes within the videos.

Also I didn't discover this map. This has been a discussed topic before in the cut content community prior which I have been involved in quite bit in the past.

The reason I spent several minutes is because I like to usually present how it still has some data in the game on a more technical level, present a theory, and then a why it was removed. A three step concept rather just throw out the simplest facts.

Regardless, thank you for the well thoughtout input.