150 Metres
When they talked about Jyorta Bone's strength, they didn't mean his strength as an Esper. That wasn't anything enviable. After all, everyone could achieve it as long as they were at Tier 2. As it was their Wisdom Parasite that imbued it in them through the passive Nurturing process.
What they were excited about was Jyorta Bone's character, his decision-making skills, and his foresight in planning his moves. They were anticipating his strength that managed to wipe out all Frenzy Beasts in the first three layers of the Labyrinth of Frenzy.
It wasn't a feat a regular Tier 2 being could ever hope to achieve. Jyorta's actions were akin to a Wave Controller dancing around. So, they were excited at obtaining that strength within three years.