How does world team work?

https://goalfc.net/game/league_season_team/17?league=45&season=196 says “PSV Adam Roorda 9.5” which is probably the highest in the world.
However, he is not in the world team: https://goalfc.net/game/hall_of_fame?ranking=P

How comes?

From what I can see he played only half of the league matches and no international competitions. The World Team of the Season takes into account all the matches the players had great ratings, so number of matches played matter. As a simple example, a player that played only 5 matches with a rating of 10 in all of them will be less likely to be in the world team of the season than a player who played 10 matches and had a rating of 9 in all of them.