Atalanta suffered a significant loss of points. They had to not lose points in the match against Genoa. Now they will have to follow the leader from afar. After losing to Roma last week, their 0-0 draw with Genoa this week must have upset the team. Juventus won 2-0. Juventus were the team that dominated the entire game. They got 3 points with goals from Kean and Bernardeschi.
Lately atlanta seems to have started to experience a decline in performance, and it can be seen when they failed to get full points against a fairly weak genoa, in that match atlanta managed to control the game and create many chances, but unfortunately they did not manage to score a single goal due to bad finishing from of the atlanta front line, with this draw made atlanta remain in the number 4 position and now juventus who are in the 5th position are only 4 points adrift of them.
I agree with your thoughts on the decline in Atalanta. Atalanta should not have lost, especially in this easy match. This loss may even cause them to lag behind Juventus. Juventus have had a good series and are moving towards the top. Atalanta should not suffer simple points losses in a season that they started very well.