In fact, the character could also arrive at Drama, by passing through Information instead, even though this would take them off the bottom of the Table and back up to the top (as published in the book). The reason is, that the Table is really more like a cylinder - the cardboard tube in a roll of paper towels. The Table really wraps around, connecting the top to the bottom; Information to Entertainment.
This represents the flow of human emotions. We can all get to any emotion, but just as with the Seven Stages of Grief, or Freud's Psycho-Sexual Stages, you can't skip the in-between. If you do this, the audience will not be able to follow the story emotionally, and you will lose them - pull them out of the experience. They will suddenly become aware they are an audience to a story, and will examine what happens dispassionately.
This was the mistake made by the Bruce Willis movie, "Hudson Hawk". They wanted to mix it up (comedy, thriller, action movie, musical!) but rather than wrapping around the Table, they jumped over in-between and lost the audience. If you haven't seen it, rent the video just to see what I mean.
Still, (and finally), there is one way to violate this rule to your advantage. If you skip a step, your audience will look to see if it is just a fork in the road. If it is, then you will effectively be telling your audience to "be of two minds" about what is happening. In other words, you are telling them to have mixed emotions about what they see.
The way to make this work, is to make one and ONLY one skip-over, then start TWO lines of emotional presentation for the same throughline. For example, you might have the Objective Story be Informational, then jump to Comedy, but also continue the Informational line. The audience is now split in their emotional assessment of the Objective Story, and will experience mixed emotions until you bring both lines back to the same row, perhaps Drama, or any one you choose. When the flow of each of the split lines converges back to the same Storytelling aspect, the audience will wait one more scene to see if they are just crossing paths or really combining.
To cross paths, each would next jump to different places, to combine, on the next move, they would move to the same place again.
When you consider the four aspects of Structure, the four aspects of Storytelling, the ability to place different Classes in different Storytelling aspects (Comedy, Drama, etc.), the ability to move around the Table with each Class independently, and the ability to split and recombine any or all of the Classes pathways, you end up with a highly complex, highly flexible, yet absolutely predictable method of creating the "Genre feel" of a story, all from one simple little 4x4 table.
Melanie Anne Phillips