This is a really shitty intro to hip hop. Clearly the author is like 16 years old as he neglected to include anything pre-1996 except Sabotage.
Why is that a bad thing? If I, as someone who knows nothing about the genre, wants to find out what it's all about, isn't it better to start with contemporary bands that are still active so that I can get a feel for the current state of the hip hop scene? All else being equal, I prefer to discover new bands that are still putting out material and touring to discovering 'new' bands where the last member died 1998.
Entroducing (1996) by DJ Shadow remains one of my all time favs. I believe it may even have been the very first album composed entirely from samples*
edit: * Wikipedia doesn't say it was the first.