But against Liverpool the game took a direction that couldn't be predicted during the game. I think the goal against Arsenal after 80 minutes was brutal as it was an own goal when Arsenal themselvses had their chances to take the lead and instead they put the ball in the back of the net in their own goal. That's tough.
The second goal scored by Diaz was probably not even necessary anymore, but I am sure that this was one of those wins that Klopp enjoy in a very special way.
We can say that Liverpool was quite lucky that they could have 2 goals. The first goal is an own goal made by Jakub Kiwior (Arsenal player). Another goal was made in the injury time (90+5'). If there is no own goal, Arsenal players may have a better chance to score goals. Luckily, Arsenal player made a mistake, the own goal happened, it dropped their mentality.
It may be not really important goal anymore but it make Liverpool to ensure their win. By scoring another goal, Liverpool didn't win the match by getting an own goal only. At least Liverpool could score 1 goal from their own players.
True, but in some cases I think it is fair to say that a team worked hard for their luck. So there are teams that get really lucky and score like three lucky goals in a game while having no chance otherwise and the opponent hit the post like ten times. Then that's an overall lucky game. But Liverpool isn't a weak team, they are still a deserved winner when a game doesn't go perfectly well for them.
An own goal is never really fair although it depends what kind of goal it was. If it was a classic own goal because of a stupid move or decision, that's unlucky. But some goals are deemed own goals when it was almost impossible for the defender to pull back. It is still an own goal. In this situation the header wasn't the smartest thing to do.
But Liverpool hit the post just minutes before the first goal. I think it's ok how this game ended.