What's the point of Dubai Expo city if no Expos are being held there?

Genuinely confused as to why there is an entire development specifically made to cater for these types of mega-events, yet GITEX and many other expos are happening at WTC and bottlenecking the traffic to such an extreme...

This is such a hell week for traffic, schools and work are already making it worse, and GITEX is just the cherry on top....