Fair point. However, Onoki can create rock clones who can keep the real Onoki hidden and a mystery. It won't be easy realising which one is Onoki, yet easily enough to buy time for Jinton. More so, Jinton can't be defended by any means. Susano was obliterated and it is based on sincere chakra. Gaara's sand is based on sand infused with chakra, where the chakra is easily destroyed, hence the sand is released into molecular sized particles. I don't see how sand can be a better defines than complete Susano nor do I see sand countering the Jinton in the first place. It is true that he can create massive amount of sand. However, Deidara did indeed end up leaving the dome [
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]. Deidara was hit by sand because he touched it, while Onoki will not be touched for these reasons; He is marginally smaller and he was this fast without lightening his weight [
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]. With his smaller size and greatly increased speed, he should have no problem leaving unscathed. Please note Deidara had not begun to avoid the sand prison until this point [
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], where it had almost already closed, while he sat there thinking how Gaara's defines is impressive and like an egg shell....