There is certainly sensationalism in his version, but there is also something more interesting than just another attempt to make the Bard look flashy and relevant. The graphic novel helps the unschooled reader see that Macbeth - extraordinary as its language might be - is not just words. Every frame has people acting and reacting, pressed by events. Pupils reading the play often have difficulties simply understanding what is happening. Here, the illustrations will let them see, and leave them (you hope) free to absorb the words.
Judge for yourself by scrolling through the first few pages here in Amazon.