Which is why I found LoK to be hilarious because the writers tried to show that chi-blockers were just as powerful as benders, which is unbelievable because there was absolutely nothing stopping benders from learning chi-blocking themselves. Chi-blocking was something any fit person could learn. Actually benders would be in an even better position since they are already familiar with martial arts.
The combat strategy of all chi-blockers and even Amon went something like this:
1) Run at bender making zig-zag movements.
2) Dodge all their elemental attacks.
3) Dodge. Dodge. Jump.
4) Laugh at the benders' pathetic aim.
5) Jump. Flip. Dodge.
6) Ta-daa! You're now in striking distance.
7) Take them down.
And this happened Every. Single. Time.