I think possession and the ability to keep the ball is the most important quality in a team and can lead to the highest amount of points in the league. If you could score goals with a strong attack and could keep possession theres really no need for a good defence as you wouldn't need to defend.
I think this is what Man City is doing to some extent. Pretty much every single player on their team can attack and is somewhat of a goal scoring threat/build up. Even Ederson isn't the best shot stopper, but he doesn't have to be because he has fewer shots to save. Instead he is amazing playing with the ball and great distribution which in turn helps Man City keep possession.
To wrap things up, I think this has some sort of truth, but if technically you focused on your squad being able to score and then be able to keep possession, theres really no need for much defensive capability. Obviously players make mistakes and this is hypothetical but thought was interesting and I think Man City has somewhat implemented this strategy. Obv with their financial backing and what not it helps them to attain players of this calibre but it also seems this is in their type of training/tactical dept.
Feel free to point out flaws could be completely wrong about this theory
One of the best managers to ever manage the game said, "Attacks win you games, defence wins you titles". You can agree or disagree with him, but I'd listen to him over the average redditor.
The quote gets taken at face value too much. City are where they are more for their attacking prowess. Attack is the best form of defence and all that jazz.
I would love to see Ferguson and Wenger create throwaway accounts and shit posting on Reddit while leaving subtle hints at who they are.