I don't see it as Eden Hazard's fault and for any player if there is an offer from the best team in the world they will definitely agree to accept the offer, especially the previous club they defended could get a lot of profit from selling the player. On the other hand, playing at Real Madrid, of course, the salary is quite a lot and there is also a guarantee to win the title. We see Eden Hazard even though in the end he suffered an injury and had to sit on the sidelines for many seasons but he managed to win various titles with Real Madrid.
I think that is Eden Hazard's achievement as a Real Madrid player, but apart from that he is not a player who contributes fully to the club. Eden Hazard's journey has officially ended since last month and now he must determine the next place as the foundation of his playing football career, even though the chances are quite small for other clubs to start approaching Eden Hazard, I think if there is an offer from a Saudi league team, I hope he immediately decides to join.
I have nothing but respect for Eden Hazard. He was one of my favorite players when he was at Chelsea despite not being a Chelsea fan myself. He is a skilled player who has been very unlucky at Madrid. I agree with everything you said - every players' dream is to play for the biggest teams in the world and Hazard did nothing wrong to move to Madrid and that was during his peak. But these things happen and things might not always go as planned.
I wish him luck in his future endeavors. I would love to see him get signed by a Saudi Pro Club where he can see out the rest of his career.