People always complain. When there was a war about minor characters like Asuma vs Team 7 or even Sai vs his brother, people were like "OMG IT'S WAR AND THE MANGA IS CALLED NARUTO BUT NARUTO WASN'T IN THE MANGA IN 10 CHAPTERS ALREADY OMG IT SUCKS". But when he comes back people go like "WE SHOULD SEE MORE OF THAT AND THAT CHARACTER OMG IT SUCKS".
The fact they hasn't shown full fights on the War, makes it more exciting to be in the Anime, where they will show the full wars between teams for sure. Manga only has 17 Pages, so Kishimoto made the battles especially to be included for the anime.
Gtfo with the complaints. They're useless and you're not going to change the manga by complaining on English Fan Forum.