It was not so when it was opened for the first time. For a magus's spirit is attached to it. Making it pretty harmful to a magi's help if they chose to cut off the connection mid-way.
But Lakyus was ready to afford that pain and he even bought a contract for this specific purpose.
This was the last thing he could do to earn some of Faruq's confidence in him. Because only with an agreeing party would he be able to conduct his experiment.
And confidence was everything, this was the building block of any relationship. And Lakyus was knowledgeable enough to exploit it.
There were many things this old dwarf had hidden and he also knows that the chance of the coordinates being true was pretty low.
Because for a civilization capable of creating immortal Warriors that can be controlled remotely, this would be a very big mistake to make.