Anime lengths in general are annoying.
They are either too long or too short.
Some animes being just 2 seasons (about 15 episodes per season as well) while others may have 10 seasons and hundreds and hundreds of episodes.
This is what made my best friend give up Naruto - he tried watching through the series but it was the only anime he ever watched and it was just too long and time-consuming hundreds and hundes of episodes and he never made it to the end. He felt he was wasting his life...