I don't usually watch Asian teams besides World cups although World cups clearly shows Japan and South Korea are the strongest teams in Asia. They have many familiar players from European leagues in general. On the other hand Australia (ever since they joined Asia instead of Oceania) can also be competitive in this tournament. Iran may also achieve good positions.
It is sad that China is not doing good in football yet still with a billion population.
Japan and Korea are not the best of the football teams when you compare them with the Europeans and south Americans teams. Also China, India, Iran, Saudi Arab hasn't make any impact. I wonder why the Asian teams are not so strong as compare to the rest of the world?
Maybe the hot weather in Asia is not suitable for the football game or there can be any other reason? Lack of interest in this sport
Not justifying him and not blaming you either.
What
Pierre 2 means in my opinion are Asian players from Japan, South Korea, many who play in Europe who can have a positive impact on their country's football, especially in the AFC Asia Cup tournament.
Then, he also does not compare Asian football with European or American football.
If you compare Asian football with European or American football, of course they are superior. However, football teams from Asia can make it difficult for European or American teams and they admit that they are overwhelmed against some teams from Asia.
This has happened in the biggest football tournaments held by FIFA such as the World Cup.