A YouTube video about Echoes of Wisdom used the phrase "outsmarting the developers", which I think really encapsulates how players feel when they first use the spider to crawl up a wall "escaping" the normal path boundaries. Of course it's all an illusion. The developers knew this was possible and created the game to encourage exploration outside the "normal" boundaries.
And while they are subtle, the walls are still there. It's impossible to escape the Sauthorn area until you've