When playing video games, I rarely care about "legendary/hardcore/suicidal/unimaginable/impossible(or whatever they are called)" difficulties, optional bosses, bonus levels, and all those annoyingly tedious collectibles/achievements/medals/easter eggs. There is absolutely no fun for me to beat a game on the highest difficulty, and extremely unfair and unavoidable boss fights often result in a rage quit followed by an instant uninstall.
I'm glad Avadon 3 is not difficult on Hard, and those two difficult fights are totally optional.