australian cup v the interdominion

WHY ?
why couldn't 'they' work out the program so that these two great races on the australian racing calendar DID NOT CLASH, surely one way or another a week forward or back wouldn't matter to either code
why couldn't 'they' work out the program so that these two great races on the australian racing calendar DID NOT CLASH, surely one way or another a week forward or back wouldn't matter to either code