For starters, the host nation at the World Cup of Pool has always gotten two teams.
This year, Albania withdrew from the event the day before it began, and Matchroom had to move fast. Boyes was already on hand as a commentator. Appleton, who lives about two hours drive from the event, spoke of how he had to rush to the venue and get tested in order to be ready to participate. I applaud Matchroom for finding a team to replace Team Albania at a moment's notice.
Yes, having three teams from the UK does look a bit silly, but it was a sensible solution.
France replaced Albania, UK3 replace Canada