Why did Naruto use those TTB on Kaguya?

[jiraiya nindo]

are you sure the jutsu hurt her ? and not just knock her back ?

Rule number 1 of naruto: when a characters clothing is rip/torn/ruined and they have dirt marks on their face...they are hurt

 

[Draxus]

He didn't evaded it.

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Notice the huge cut across the stomach.

fair enough, my point still stands.