I actually did not enjoy how the mythic powers is integrated into the main story of WotR it felt like as if I am watching an anime (cheap basically)
-Might be a spoiler so don't continue reading -
when there is no hope of survival and out the sudden a mysterious power comes to aid the party (not just the mc) lol mechanical-wise they sound great but story-wise I am not happy with it
Based on your comment I'm not sure if you played it or not. Anyway there are two things to be said about it - hero getting superpowers is something RPGs have since at least Baldur's Gate. It's all about execution. If we talk about WotR specifically, I would say some paths are weaker than others story wise but it's to be expected that not everything would be perfect with a game of that scale made by such a small company.