You have a point, Saudi Arabia has a promising future with the rise, development through investments and improvements in its football infrastructure. There is no point in nations competing in every World Cup if they don't develop their football, this takes decades. There is a whole process of cultural adaptation, children need to grow up playing football as happens in brazil, which was once known as the country of football, exporting legends.
In general, their steps are correct in boosting their football popularity by bringing in star players in the league, but I have not seen what their next steps are like. one of them is youth development to be their future capital. I do not know how far they have developed youth development, what I know now is that they have national team players who mostly do not even get a place in the club. Of course this is a problem that they must quickly resolve and one of them is youth development which is a very important foundation for the development of football in a country.