Even then flashbacks(especially if you include anime exclusive scenes) imply that Jiraya was more or less as attentive to Naruto's training as with the rasengan training during the search for Tsunade, meaning he would likely assign a task with little to no explanation and give advice only rarely while likely getting distracted by any pair of tits that he encounters wasting most of the time he should be using to train Naruto. That is of course on top of the hyperfocus on trying to have Naruto focus on preparing to fight Akatsuki by using the one thing Akatsuki would be most thoroughly planning to counter.
I actually have a theory about the whole "teacher doesn't teach much" trope that gets used a lot in Naruto. With Jiraiya, Kakashi, etc. It's definitely exaggerated a lot in fanon, but the point of fact is that it
is there in canon.
Thing is, that doesn't mean it's a matter of the teacher neglecting their role. It could just mean that the teacher's role is different from what we, the fandom are thinking.
Jonin sensei? Yes, they're supposed to guide their genin and chaperone them a bit, especially early on in their careers. But that doesn't mean they are supposed to hold their hands every step of the way. Once you're a genin, you're considered an adult. Your sensei is there to give you advice, to keep you from dying if you get over your head, and to be someone you can
ask for lessons on something if you need the help. They give pointers, help you learn the mission system, judge your progress and what you're ready for, etc. What they aren't there for, is to write up a training regimen and drill you every day, teach you all the jutsu you will ever need to know, and so on and so forth. You want to get stronger? Okay. Go train. You want your Jonin sensei to help you train for something in particular? Okay.
Ask them. They're a Jonin. They have missions of their own. Their own stuff to do.
An apprenticeship is almost even more so of that. An apprentice is a junior assistant to a master, who learns the master's trade along the way. They learn by doing, and by watching their master do. The master may give them specific lessons, or they may mostly
not. That's how it always has been for apprenticeships around the world anyways. There's more one-on-one time, yes, but your master is not sitting you down in a classroom. Their classroom teaching ended when they graduated the ninja academy. That period of their lives is over. If a genin wants to progress their career, it's up to
them to pursue that.
From that perspective, Kakashi and Jiraiya were actually pretty great at their teaching jobs. They outright volunteered direct lessons on multiple occasions. Kakashi actually went so far as to volunteer one-on-one training for Sasuke between the stages of the chunin exams, and arranged another teacher to do the same for Naruto, before even being asked for training by either one of them.
He was supposed to judge whether or not they could hack it in the chunin exams? Well, you might say he was lax about that, but he clearly wasn't. Because they clearly were in fact, ready. They were up to the task, as he thought they were. Two of the three of them made it to the third round. That's a full
quarter of the third stage's participants who were from his team, out of
how many total exam entrants? That's impressive. One of them won his first round in the third stage as well, with the other being one of the crowd favorites who was doing a fine job against an
active jinchuriki before they were interrupted by an invasion.
I don't think that Kakashi or Jiraiya were bad teachers. I think that the English fanbase got a wrong idea into our heads about what kind of teachers they were supposed to be in the first place.
This has been my largely-unprompted TED Talk.