Neymar will be useful in the long run as it will be a short-term absence. Considering that other forwards are of good quality during this waiting period, the absence of Neymar will not cause major problems. Neymar will certainly add strength to Al Hilal when he joins the team. The evolution of the Saudi league is spectacular.
Well.. I agree that the other players are performing really well. But the point is that Al Hilal spent a huge amount of money on Neymar and he is going to miss the initial phase of this season of the Saudi Professional League. They may or may not perform well without Neymar, but the management is not going to be very happy with the situation. But then, we can't predict the injury scenarios. It can happen to anyone, given the increased workload athletes have to deal with these days. On top of that, Neymar is no longer young. He is already 31 years of age.