I do not envisage many people here in the UK rushing to the pub tomorrow to watch the final. Kick off is at 11am. Pubs open at 12. It is being broadcast on both the BBC and ITV. The viewing figures therefore should be rather accurate.
I was more thinking here in Aus where there have been thousands at live sites and packed pubs. I also think there'd be a few places in England putting the game on in public spaces, but my point was more to counter the "But what about people not watching the game in the same house or what about this or that" that was popping up.