Luton is a very weak team. the team that was just promoted to the premier league this season is currently still in the relegation zone in the English league standings table. and before away against liverpool at anfield Luton played at home and lost even at home against a team that was both a promotion team and both in the relegation zone shefield united also lost. so liverpool won by a landslide, it's a normal thing even though they couldn't play with the full effect of several injured players.
Injury players was never the problem of Liverpool, rather these players have become very competitive and strong enough to enchanced the performance of their club. Jurgen Klopp already had a clue how to handle the newly promoted side. Liverpool thrashed their opponents and came out trembling for victory, this is one of the best display of the club against average club, doing an epic come back have always been the responsibility of the club. Luton Town was the first to pin down a goal and led the first half with 1 nil but they didn't they maintain it full-time? NO they couldn't due to the outstanding performance pulled by Liverpool in the second half, they came for the very best results and they had it.
I'm not sure if Liverpool's present squad can stay at the top of the Premier League table before their key players return from injury. Even without key players, Liverpool was supposed to win against Luton Town yesterday because Luton Town only won five of their 25 matches played in the Premier League this season.