B.C.'s historic Special Events - ones like EXPO86, MUSIC91, 1994 Victoria Commonwealth Games, 2010 Vancouver Olympics, etc aren't designed, or meant to "break even", or otherwise guarantee infrastructure that can remain useful after the event is over.
These kinds of events are more about local and regional residents and governments state of mind, more indicative of the way the host city, and host province sees itself, and wants others to see us.
The events noted above made immeasurable changes in each of the areas they took place in, indeed EXPO and the Olympics made wholesale changes to the entirety of B.C. - both in how we view ourselves, and how the rest of the world views us.
Big special events go pretty deep mentally, at least in terms of how they reflect back on a city, region, or province ... more often than not, they result in an overall positive effect.
Things that happen after the event is over are often noted as reflecting on the event itself, but in reality, once a special event is over, it's over ... and things like a crumbling cycling track, and Chinese developers really don't have anything to do with the event that took place, how the event reflected back on the folks that hosted it, or how those hosts choose to remember the event and its impact on their community.