They had multiple of games like that, a couple of them winning in the last minute via Sterling, there was a game against Palace when they missed a last minute penalty [I think Palace lost 1-0 or it was 1-1 at that point, can't remember
2017/18 Manchester City won 32 league games:
10 games by a 1 goal margin
9 games by a 2 goal margin
5 games by a 3 goal margin
3 games by a 4 goal margin
4 games by a 5 goal margin
1 game by a 6 goal margin
So 19 games won by 1 or 2 goals (or ~60%)
For comparaison, Chelsea in 2016/17 won 30 league games:
12 games by a 1 goal margin
9 games by a 2 goal margin
6 games by a 3 goal margin
2 games by a 4 goal margin
1 game by a 5 goal margin
So 21 games won by 1 or 2 goals (or ~70% of total wins)
This season Manchester City have won 10 league games. 50% of those games by a 1 or 2 goal margin. Though 40% by a 5 goal margin.
Liverpool have won 9 league games this season with 66% of games by a 1 or 2 goal margin.
Even with a really small sample size, what I'd take from that is the % of games we are winning by 1 or 2 goals is similar to the last 2 title winners. But City this season are winning a high % of games by a 5 goal margin this season. They actually won a relatively high percentage of game last seasons by 4 or more goals (25% of their wins). That equated to a win by 4 or more goals every 5 games. That's incredible going for an entire league season. So far this season that's been upped further.