You received issue 283 because that's the latest issue. It is light on DTP and graphics but that is exceptional - and the next issue should certainly make up for part of that!
In the previous six issues there were at least 20 articles on that subject area. We certainly won't be abandoning DTP and graphics - quite the opposite.
We gave sample copies of issue 278 to visitors to Wakefield - you would probably have enjoyed that - and that would be included in the offer you were sent.