Obviously yes.
Simply because characters have the ability to use 3-4 elements doesn't mean they've mastered them nor can effectively use them in combat.
The new elements given to characters are practically useless in vs threads because we don't know what Jutsu's they have nor their level of mastery over said element.
^^^Agreed^^^
The Databook is the reference to the each Characters abilities.
Many listed on the character's jutsu, elements, etc; will not be shown in the manga, simply it is not necessary.
If not, for example, say Kakashi 1000+ jutsu will take an additional 500 chapters, based on 20 pages/jutsu per chapter.
So do any other character's jutsu & element.
Then when Kishi did not include what sort jutsu & element that particular character, such as Minato, u blame Kishi for that.
Kishi spent a lot of time to create this Databook, and even to consult ninja expert.
Yet some of u do not appreciate.......