Uh-uh.
The Cleric of Moradin is the one absorbing the attacks. 3 points higher AC and a defender theme as opposed to a striker one.
The fighter only does more damage than the cleric of Moradin because he has prioritised strength over wisdom (which given his wis is 14 doesn't mean much) and because he's wielding a two handed axe rather than carrying a large shield. Oh, and because of his theme.
If he had a warhammer and shield, and the knight theme, the cleric would do more damage with Crusader's Strike - and that's one long lasting buff.
This isn't about choice. It's about baseline competence. The fighter fakes it by putting everything into offence.