>>39263478Because Lokoko was fucking tragic, worse than Lucario's story as at least with him he slept through the centuries and had people with him to shoulder his grief. Lokoko on the other hand had no one, her Samurai master was gone, soon the servants left or died away, then mansion itself began rot and crumble until there was nothing left, not even the stones. She waited all that time for a master was clearly dead and then she started pretending, she rebuilt the mansion, brought back the servants, created an identity for herself... but it was all hollow she still wanted her master. Brock passing by years later was a close fit and she came damn close to ensnaring him but Brock woke up to what was really happening and then woke her up. They left on amicable terms, she even offered to go with brock but he told her to be free.
If you Japanese kitsune stories you know what happens next, she'll be fine for a time but she'll grow lonely and nostalgic and start it all over again.
It may have a happy ending in the anime but according to tradition its not a happy story with a desirable. Most of the time the fox spirit ends up suffering precisely because they aren't like us. They covet, they revenge, they mourn