You are right dear this season Premier League is more competitive. Manchester City used to dominate but now other teams have chance. Last season Manchester City only lost four games but this season they are losing more. Top teams like Manchester City Arsenal and Liverpool will likely lose six games each by end of season. This shows Premier League is getting tougher.
I think I should straighten out your post here, last season Man City did lose 4 times in the EPL but this season no one knows whether Man City or clubs like Arsenal and Liverpool will lose 6 times because so far they have only lost 1 time and Arsenal 2 times it is still too early to say their defeat until the end of the season.
Chelsea has changed a lot under Coach Pochettino. They are now a strong team unlike the past two seasons. Pochettino deserves praise for building such a good team.
And it should be noted that the current Chelsea coach is Enzo Maresca not Pochettino so the one who deserves praise is Enzo Maresca because Chelsea's revival this season is thanks to him.