People have short memories. Lebanon always aim up at Worls Cups. They hung in with Aus in 2017, pushed Eng & only lost by 2 to 2026 opponents Tonga
There's a far more realistic scenario I hope doesn't play out than Lebanon sweeping the pool matches:
The winner of the Tonga v Samoa game misses out on F/A.
If...
England beats Tonga, PNG, France
Tonga beats Samoa, Lebanon
Samoa beats PNG, France
Samoa can still qualify on f/a
Some might say it should then be decided on head to head rather than f/a
But if...
England beats PNG, France
Tonga beats England, Lebanon
Samoa beats Tonga, France
PNG beats Samoa, Lebanon
4 teams on 2 wins each! With a completely circular head to head result!
So. Some controversy is likely. Hopefully not. It's very hard to have a sub 16 format without any caveats. Even in a bog standard format you have the luck of the draw putting you in easier or harder pools. Look at France, luck of the draw has them playing England and Samoa instead of Tonga and PNG. But at least it's not Australia and New Zealand!
Lets just hope the tournament is commercially successful and something to build on so that one day we can get back to an actually viable 16 teams.