Putting points in Vitality also reduces your damage output slightly so OwO
I think the hybrid builds are designed to be used alongside Spirit Weapons, thus the damage reduction on your other abilities but not Spirit Energy. In other words, even Hybrids are nerfed without them. Its literally the main skillset of an entire stat build, so without that, the game wont really be complete.
In other words, people are choosing it because its literally an entire stat build’s skillset thats been missing from the beginning and should probably be prioritised more than just adding extra skills and weapons, which Weapon Users already have.