为什么模型绑定比过滤器更早发生

After going this excellent blog post by Simon I came to know that model binding happens earlier than filters execution (even before authorization filters). If the request is not authorized then it should be rejected as earlier as possible and in that case I prefer running the authorization filters before the model binding process. Also, by this way we could save the time avoiding scanning the request, creating model instances and performing validation. by Simon I