You have to consider who was the main ideologist and creator of the old world. A lot of things in Tibia just existed a long time ago and a lot was planned, but many things did not materialize. You must also take into account that Cipsoft is a group of people, not one person. We do not really know whether the creator of the main continent was only one person or a few people. I perfectly understand that the creators also wanted to put the player in a position of not understanding or guessing something at some point. A lot of things were related in a strange way, but somewhere the trail was cut off, because just some of the things were not finished yet, and only showed the beginning.