Morkus from Orkus
Because the high priest asked for it. Kelemvor(and other gods) grant what the priests ask for. Maybe his high priest is invited to the local palace a lot and has hard time remembering where the lavatory is. To get to the palace lavatory very quickly, something he has issues with, he needs the quickest, most direct route and uses Find the Path.You took a specific example and turned into into a general rule. What if we instead asked why would Kelemvor offer it to his high priest in charge of burial practices?