You could say that Leicester have been lucky from that graph. On the other hand, you could say it's good finishing. We have definitely wasted chances in front of goal. I remember Liverpool under KKK, they were creating plenty of chances but spurning them, mostly Suarez ironically. We mocked them because they said they were unlucky. It's a combination of luck and bad finishing I guess.
I'd say our top priority in the off season is another goalscoring midfielder (I realise these don't grow on trees) as Lamela isn't clinical enough. Chadli and Eriksen have shown they can score. We also need a backup for Kane and Dier.
I'm not saying sell Lamela to be clear, but I still feel there is some improvement needed. Kane will ultimately learn how to be even more clinical than he is now.