And Liverpool play in the Premier League, which beats everything else that comes with playing in the Swiss league. Let's not try and invent reasons for why you shouldn't be able to beat Basel.
I'm not inventing reasons, we should have beaten them, especially at Anfield but I also think people underestimate how good a team they are. Sure, they are one of only 2-3 decent teams in Switzerland but that's no different from Benfica, Porto, Galatasary etc in their respective leagues.
Take note of some of these decent results vs Premiership teams though...just 2 losses, both to Chelski in the 12/13 EL semis. They got a win or draw in 80% of matches in that period against 'BIG' Premiership teams
2014/15 - Drew with LFC 1 - 1 and beat LFC 1 - 0
2013/14 - Beat Chelsea 1 - 0 and 2 - 1
2012/13 - Drew with Spurs twice and knocked them out out EL
2011/12 - Drew 3 - 3 with United and beat United 2 - 1
But nah, they're rubbish, just play in the Swiss League. Get a grip.