There will be financial costs for running this meeting tomorrow. They will be desperate to get this done tonight.
The BSI will almost certainly be making a loss on this event.
If the competition does not take place today, an attempt will be made on Saturday as well as on Sunday. If the tournament does not take place by Sunday, it will be completely canceled.
They knew the weather forecast for tonight and tomorrow. Why not move the meeting to Torun or Gorzow?
It's not like they've sold out the entire venue.
BSI are awful organisation.