This has been discussed at length on many occasions, nin/tai pen stats have negligible influence in damage calculations even with large disparities between 2 opponents.

While on paper they have a function, in paractice they have no influence in a fight. This has been tested several times in both our version (pre 4.0) and China.

So removing them will change nothing to the game, except maybe help players that are wasting an 8 Gates slot using nin/tai pen chakra runes.

As someone who looks at the forums fairly often I have never seen a thread or video showing that tai/nin pen has any quantifiable effect in this game.

If you know of a video or thread which has some conclusive proof please post the link. I for one would love to see if 4.0 changes the tai/nin pen mechanics which is possible (although improbable given that in 4.0 china version this problem persisted).

In the meantime I suggest you don’t use tai/nin pen on 8 Gates or the TI tools. There are much better options,