Okay yes, he can throw rasengans around at will no one is disputing that. Jiraiya can do it to, but the normal rasengan isn't much of a jutsu, not only is it easy to avoid but it doesn't do much damage so it won't mean anything against Akatsuki. The only person I even remember Naruto hitting with the normal rasengan and this is non-filler ofcourse is Kabuto and he took the hit on purpose so shut the hell up already. There is a reason Jiraiya doesn't use it in battle because its useless.