I think so. As the series progressed, the characters moved from ninjas into godlike powerhouses. This is particularly evident with Naruto's power when utilizing the Kyuubi's chakra.
Part 1: While the seal is only weakened (and not fully under control by Naruto), his punch was only able to shatter Haku's mirrors and mask.
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Part 2 (War Arc): While controlling the Kyuubi's chakra, he was able to move at breakneck speeds all while deflecting huge explosions which leveled the landscape.
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