It is a fact that rebounding and boxing out are very important skills for ANY basketball player to have, at any level of competition. Why would you think that this is not the case in this game? There is no need for him to get to PRODIGIOUS, but a guard with respectable or strong rebounding will be a much better player than one with pitiful or awful. Of course, if you want to have a legendary jump shooter that can't play with the top players because he isn't well-rounded go right ahead.
Once I scored a basket that still makes me laugh.