>>319791
In Caeldori's case, it's a result of being backed into a corner for localizers doing stupid shit. Asugi, Rahjat and Caeldori are all doppelgangers of Gaius, Tharja and Cordelia respectively. In order to keep the Japanese names faithful to the original's name, the names also had to be changed
So, Cordelia's Japanese Name was Tiamo while Caeldori's was Matoi. Both names are anagrams of each other, so in order for the reference to still exist, the name had to change.
Course, it could have been stopped by never changing Cordelia's name in the first place.