Maezer |
I doubt there was any reason other than they copied the spell list largely intact from D&D 3.5. To the best of my knowledge there never has been anything approaching an official reason as to why the stat buff spells were distributed with their peculiar gaps as they were.
Belafon |
It's a carryover from 3.5.
In 3.5 the paladin's spellcasting was based on wisdom. The "expected" buff spells she would use on herself were strength, wisdom, and charisma, so that's the ones she got. Ditto for the cleric and druid who got the buff spells they were "expected" to use on themselves. Wizard got them all as the basis for spellcasting in general.
I'm not really sure why it was thought that the paladin wouldn't want extra Con but the cleric would. Maybe Lay on Hands was supposed to make up for the lack.
Avoron |
I'm pretty sure druids get them all.
Nope, druids and hunters don't get eagle's splendor or fox's cunning.
Sorcerers/wizards/alchemists/arcanists/investigators/psychics/mediums are the only ones to get all six.
Clerics/oracles/shamans/warpriests get bear's endurance, bull's strength, eagle's splendor, and owl's wisdom.
Bards/skalds get cat's grace, eagle's splendor, and fox's cunning.
Paladins get bull's strength, eagle's splendor, and owl's wisdom.
Rangers get bear's endurance, cat's grace, and owl's wisdom.
Antipaladins get bull's strength and eagle's splendor.
Magi get bear's endurance, bull's strength, and cat's grace.
Bloodragers get bear's endurance, bull's strength, cat's grace, and eagle's splendor.
Mesmerists get cat's grace and eagle's splendor.