Because the track apparently underwent even more changes afterwards, changes that are not in Codemasters version yet.   The trackdesigner of the real life Zandvoort circuit, Zaffelli, pointed out the issues in Codemasters version of the track a couple of weeks ago:     Seems as if Codemasters got hands on a very early build of laserscan data. But changes were made afterwards, rendering Codemasters version to be outdated already.