John Dickerson makes it:
Though the politics of the complaint are irresistible, it doesn't make much sense. Just because lawmakers read legislation doesn't mean they understand it. The reverse is also true: Just because they understand it doesn't mean they've read it. Drafting and reading legislative language is an art form. Staffers who know how to read it and write it are hired to translate the language. They get down in the weeds so the legislators can stay focused on the big principles.
The Dish 