It was indeed his season,but this year seems to be a different season altogether,he hasn't score enough goals as he did last season,although the season has not gotten anywhere yet,but Barcelona's Lewandowski has began to show his goal scoring abilities in the Laliga,and might move ahead of Benzema in winning the goalden boot this year.
Benzema is not playing well this season. In fact he is not completely fit. If Benzema's fitness is right, he could have scored a lot of goals this season too. But he has missed many matches this season due to injuries. And still he is not fully recovered. Lewandowski is likely to be the top scorer this season. He has managed to adapt to the Barcelona team. And consistently performing very well in every match.
Benzema's injury is the reason why he can't play optimally this season. How can he play well like last season when he only spent his time healing the injuries he had.
Something that is difficult for him to experience this season, because of a very basic problem for a football player, namely injury. And what's even more worrying, his absence on the field made Real Madrid's game not optimal either.