The Root On LeBlanc's Chain Has a Longer Range than the Actual Chain

This is true for literally every tether in the game but nice try I guess.

Technically speaking, it makes sense for chains to have a slightly longer range than the chain itself, otherwise anytime you throw out the chain from max range a single step back would break it.

Keywords here are slightly longer.

Nerf it.

It's precisely why they removed the slow from it.