You would hope not, before the fixture list is sorted they should be saying the British final is on this date so plan around as you can't run on this date.
Then promote the event, run coaches from league tracks if the interest is there, get the event out to the public.
There should be no other meetings than the British final run on this date.
It will maximise the amount of fans attending and free up all riders.
It's not rocket science, we have so many free dates throughout the year it can't be that difficult can it?
This is my train of thought now, something doest add up here and it would not surprise me if the sports governing body in the UK is behind running this.