[Yes, there's certainly no discipline to be found there, but...that's some pretty high praise coming from Peko, and she is the one who saw Jaune in a legitimate battle situation. (Sousei's giving him a pass on the arrival battle situation, as anyone would be disoriented upon arriving...perhaps......)]

It may be worth his while to continue to practice and learn, yes.

[Sousei's not going to take him on though, because Sousei is stubborn doesn't have the patience for undisciplined people...]

There are many ways that he can continue to learn in a place like this.