If your sole goal is to beat stick things with a cleric then max your str to 20. Take booming/gfb. There is your damage. If that is your goal then it's objectively a better build to grab shileleah and max wisdom instead of str.My comment about being a traditional cleric was about them being an ok fighter thype but they are fairly mediocre at that in 5E due to MAD etc.
At higher levels the difference might be 14 vs 20 in terms of to hit and damage and one less AC over a cleric going strength and wisdom.
That cleric could buff strength I suppose but then you're not buffing wisdom. Wisdom is also buffing spiritual guardians.
-That's not an optimized cleric though. Nor is the idea of using arcane magic to magically attack really the traditional cleric concept.