Same with Orochimaru and Kabuto, Sasuke even created his own moves without them knowing. The good teacher teaches you how to think and use what you have learned. Both Sasuke and Sakura used their potential. What advice Jiraiya gave Naruto? "Who needs them seals, let's become 2 trick pony!" and he basicly facerolled enemies, and only got to learn his element far later, falling 2 years behind Sasuke on that part.
The depth of Jiraiya's failure to teach Naruto anything useful was already apparent in the VERY first arc of Part II/ Shippuden. Remember when Deidara made off with Gaara's body and Naruto and Kakashi were just chasing him around like hanging a carrot in front of a horse, waiting for Kakashi to charge up his Kamui. Among the many things he DID NOT coover in his lessons with Naruto are range and versatility. I already argued that Odama Rasengan did nothing for Naruto except have the same problems as Chidori in that it drains chakra needlessly and is pointless if you can't reach the target
Edited by Phantom_999, 09 December 2019 - 07:18 AM.