Liverpool are leading the race for the title already a team with the players they have can not face challenges when they play against a small team like Burnley they are performing well more than expected they are showing early signs that they are ready to win the league this season. Against Burnley is going to end in favour of Liverpool of course they won't find it difficult to defeat them like United did and as for the contenders it's either Liverpool or Arsenal for the title.
You can not actually say this because sometimes it is not about how good or the squad a team has because we can not really predict correctly. just imagine Rayo vallecano and Barcelona, would you believe if someone told you they will play Barcelona draw even to the point of almost winning Barcelona me personally won't believe because Barcelona has a good team and they have been playing absolutely great since last season but imagine what happened they nearly loss 3 points to Rayo vallecano though I'm not doubting the fact that Liverpool is good but I want to let you know that football is hard to predict and small team tends to play well when they are playing with big team.
I understand your point, i know that anything is possible, you'll be suprised to see Burnley win by a goal or 2 or even frustrate Liverpool with a draw but understand that the majority would favour Liverpool even the bookies would even favour them in their odds, they can never give Burnley the winning odd expect maybe when the game is live and they're leading Liverpool by more goals and it's few minutes to the end of the game.
Anyways it's true that you can't determine the winner of the title by the strength of the squad but Liverpool would remain the favourites to win it for now, based on their previous performance last season and how strong they've been so far in this new season.