I kinda agree with you on this Yannis. Why would you sign up and try to qualify for an event you know you won't play? Why would you take a spot to somebody who is committed to play till he's eliminated or by chance has the opportunity to reach the finals?
Question of ego maybe? ;)
If you forfeit because you can't go to Dubai, so don't even start! If you forfeit because you mess up a round, then just finish it, show the community that you can miss a round too and move on. Nobody will judge you (not so many are following the event anyways) and your name will still be on top of the money list...you'll be fine posting a score in the mid 60's or higher that only the other members of your bracket will see . So what? 16 people?