Teams with pure defensive control outperformed those with more attacking output

I think creating a balance in a team is more important, what are my talking about, Is not about having that solidity in defense alone, I think Spain have more balance in their team, both in the Goalkeeping department, and defense, midfield and attacking department, Spain was a very good team all throughout the World Cup, and when you see how Spain was playing, it was more about game possession, in football the best defense you can play is by having more of the ball, that gives you a chance and opportunity to have that solidity in all areas of the Football game.

Defense can’t justify the overall performance of the team, you have to compliment all positions in the pitch, everyone playing to be at their best, most importantly you have to score goals to have a chance of winning a game, a team that have that balance in all area of the pitch would be more equipped to have a successful season or a successful Tournament.

You're absolutely right, having a good defense would prevent a team from conceding too many goals but how about scoring cause conceding less and scoring is important if a team want to perform better and win a trophy. Let me use the last Champions league game between PSG and Arsenal as an example, Arsenal's defended very well but didn't have a stronger attacking force to score more and defeat PSG.
That's why a balance is very important, Spain is balanced team that why their overall performance was better than Argentina's, they attacked, defended and controlled the game better.

A solid defense definitely helps but football is about the whole team working together, spain showed that throughout the tournament they controlled matches with possession, stayed organized and had quality in every position. When every department is doing it's job it becomes much safer to defensed, create chances and finish games that's the kind of balance that wins cups

You’re very correct, football isn’t all about to have a strong defense. If your midfield can control possession, your attackers can score chances and there’s a team work, it makes defending more easier. Spain shows that they didn’t only rely on defenders, the whole team work in hand to hand, recover ball quickly, keep possession and attack with purpose.

If every department is doing their work properly, the defenders won’t undergo unnecessary pressure. But every champion still needs a solid defense because one little mistake can make them lose the trophy. The major key is to be balance, teamwork and strong defense etc is what differentiate champions from every other team. Spain has proven to us that if a team has balance, it will be very difficult to defeat them.