I never thought that the Saudi League could become so popular until the Cristiano Ronaldo thing came up. Since the fact that Saudi Arabia wants to host the 2034 World Cup, there has been a lot of talk about Saudi Arabia in football, and their biggest decision was to bring Cristiano Ronaldo to their league at a high price.
Cristiano Ronaldo started a wave of star players from Europe to Saudi Arabia and this contributes to make Saudi Professional League more popular. Quality of the league is not improved too much because considerable financial investment is only for four biggest clubs while other clubs are falling behind in finance and player transfers. About marketing, it's good for their league but about quality, there is no big change and improvement so far.
Lately I read complains and warning from Roberto Mancini that Saudi Professional League with many star players from Europe, is destroying opportunities for Saudi Arabian players. It gradually affects quality of their national team Saudi Arabia and policy makers of the league need to change.
The arrival of this player in Saudi Arabia has created opportunities for many players to spend their careers at the end of their careers. Earlier, at the end of their careers, players did not have the opportunity to move to another club from Europe, forcing them to retire from football. But now if they don't perform well in Europe, they are moving to the Saudi League, thus the popularity of the Saudi League is increasing a lot.
There are old and young players from Europe who are ready to join Saudi Professional League and they are playing well. It's not like they are playing in Saudi Arabia because they are no longer good enough to play in Europe.