Why is it more difficult for Asian teams to enter the World Cup through the third place in the preliminaries than to qualify from the top places in the 12 Asian preliminaries? Seek a detailed explanat

Why is it more difficult for Asian teams to enter the World Cup through the third place in the preliminaries than to qualify from the top places in the 12 Asian preliminaries? Seek a detailed explanation Because Asia has 4.5 places, as long as it reaches the top two in the group, it can directly advance to the World Cup, but if it is the third in the group, it will compete with the third in another group for half a play-off place. If you pass, you will have a chance to compete with the United States for a ticket to the World Cup. This difficulty can be imagined, and it is naturally more difficult than entering the top two. Hope to adopt