It's already established that they were appoximatively on the same level from these scans [
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] [
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]. Obviously Naruto doesn't want to die, so if you have the possibility to gain a power that gives you a sure win without dying, won't you take it?
It's the same as Sasuke who wanted EMS to fight Naruto with his full power because MS was obviously not his full power. [
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] With EMS he had the possibility to gain a power-up that could help him to win, rather than not doing so and dying in the end