Thanks! This is a very valuable feedback! Basically I really need to redo (or add more to) the end game. I will take this into account when designing the next update. Some of this is already on the pipeline (the Defy till level x), stay tune!
On that note, anti-flicker protection would be great too. Looking at the rapidly moving flashes of light as techniques re-level up is a wee bit hard on the eyes.
EDIT:
Soul Devouring Art (2500 Heretic unlock) is the same issue as before. It helps advance faster towards True Immortal, but not only was it possible to get there easily enough before, getting there offers no benefits, and does not contribute towards getting more Heretical Qi or any other advancement front really. At this point, at ~700 per reset, it would take over a dozen 200y resets to unlock the next ability.