Perhaps the bow and arrow peach strat isn't the way the fight was designed? You can stand toe to toe and 1v1 every boss in the game. I don't have the best reflexes so if I miss a parry I run out and shoot a few shots while recovering health then jump back in. Also, I think it's incredibly immersive that the woodland monsters come out of the forest to heal their injured elder, same as you destroying their forest attracts them. The shamans' AI even changes to prioritize healing the boss over damaging you. Pretty great imo.