Maybe the Dutch national team coach underestimated the level of football in the Saudi Arabian League. So Steven's move to Al Ittihad is considered to reduce the quality of his game. However, as you say, this cannot be simply concluded. The point is that not all players who move to the Saudi Arabian League experience a decline in performance. Because there are several players who actually experienced an increase in performance after joining a club in the Saudi Arabian league. For example, Kante, who also joined Al Ittihad, showed quite a good performance when defending France at the Euro yesterday. Apart from that, currently the Saudi Arabian League can be said to have experienced quite significant progress. This is proven by the number of top European players who have arrived wanting to play in the Saudi Arabian league. So with this in mind, I think the Dutch national team coach is a bit wrong if, for example, Steven is really removed from the list of Dutch national team players. Because I'm sure Steven can definitely develop his talents well.
However, every coach's thinking must be different. Koeman, who is currently the coach of the Dutch national team, thinks that competition in the Saudi League will not be good for player development.
Steven Bergwijn is a player with a good game, I think it is also very unfortunate to be crossed out of the Dutch national team list. but I believe this decision must have required a lot of consideration. Koeman will not easily consider Steven Bergwijn's move to Saudi as a reason to cross him out. I'm not sure, maybe there are other problems.
Steven Bergwijn must have calculated the risk of moving to Saudi.
Each coach has different thoughts in choosing Players and Koeman, in my opinion, is actually the coach who is too naive at the moment by dropping Bergwijn from the netherland national team ahead of the UEFA Nations match, Bergwijn has been an important player who often makes a lot of contributions and also supports the netherland attacks from the left wing line but his decision to leave for Al ittihad actually meant that he no longer had the opportunity to play in the national team at this time, what Koeman did in my opinion no sense at all and looked like a stupid coach who immediately punished a player for just his move and not his performance, the Saudi Arabian league is starting to be very competitive at the moment, so it would be better for Koeman to wait and see how Bergwijn plays in the Arab League and not immediately write him off from squad, even players like Ronaldo, Mane and Kante can still play very good when play with his country even though they have been playing in the Arab league all this time, I don't know what makes Koeman think if Bergwijn is no longer worthy of playing for the national team just because he joined Al Ittihad at this time?
In my opinion, Koeman treatment of Bergwijn is completely unfair, because previously Wijnaldum, who moved to Al Ettifad from PSG, still had a place in the netherland squad, so why not Bergwijn?