Saudi Arabia for the moment is just spending money on foreign players, that is "easy" to do. What is difficult is to actually grow local players. Saudi Arabia have been bringing in a lot of foreign players for, how long, at least 5 years now? And how many Saudi players are there playing in Europe? Zero. They still have a lot of work to do, a lot, and they need a lot of patience.
Talking about Saudi Arabia national team, I have bad ideas for that team after easily become the host for AFC World Cup qualifier round fourth and have many day left taking rest than my national team Indonesia and Iraq. Its not fair how easily Saudi Arabia manage well for FIFA becoming the host exactly for team have many points at third round qualifying, big another not fair Saudi Arabia team have six recovering days after playing first match than Indonesia and Iraq only have two days.
AFC and FIFA easy manage by Saudi Arabia and Qatar team always prefer for both national team become the host indeed at third round qualifying have small points than other of fourth round team participants.
Maybe im getting you wrong, but the Arabia Saudi world cup is on 2034 so what are you talking about? Maybe im not understanding it correctly.
The Saudi Arabia team was build much before they start this new super growth in their league, and yes for sure they have some favours from the FIFA, they give FIFA ton of money, and that is how the world works sadly.