It begun like 10 meters and no knowledge.
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This is literally arm's distance,
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.
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That is more like 1.5 meters.
If you are American, you might be thinking in "feet". Feet are not meters. One meter is over three feet in length. 30 meters would be something like 100 feet. That isn't 100 feet; that is 10 feet at best, and that's being generous.
I find it actually kind of relevant since a two tokubetsu jonin were able to push them at their limits even without any kind of knowledge.
It is completely irrelevant to this thread where you have 30 meter starting distance and full knowledge.
Starting at what was essentially striking range makes Kidomaru and Tayuya's long / mid range arsenals useless. Their CQC abilities are nigh non-existent. The only two in that group that have anything resembling effectiveness in CQC are Jirobo and Sakon / Ukon.
30 meter range means Kidomaru can casually snipe at a distance and Tayuya can play her flute; they can't do that (at least not effectively) in CQC.
EDIT: Another thing to consider.
They are still fighting on
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. Literally two pages later,
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. I am aware that panel time = / = real time, but it should be some form of indicator of how fast they beat them.
Their exhaustion was also attributable to
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. They got away with literally no injuries while the Jonin were absolutely destroyed, indicating the gap between CS2 states and the Jonin was large.