The points I tried to make are (a) Assange has only himself to blame for being stuck there for 7 years and then getting kicked out, and (b) that Sweden had a formal policy, and possibly even a law about not prosecuting non-Swedish individuals who were not physical in Swedish territory.
That article pretty clearly states that the prosecutor believed that Swedish law prevented the investigation from proceeding, and that matches what the prosecutor in the article you cited said to the tabloid.
The policy was changed because of Assange. It's not specially applied to him--the new policy applies to everyone. He's just the only one you here about outside Sweden because he's globally infamous.
That article pretty clearly states that the prosecutor believed that Swedish law prevented the investigation from proceeding, and that matches what the prosecutor in the article you cited said to the tabloid.
The policy was changed because of Assange. It's not specially applied to him--the new policy applies to everyone. He's just the only one you here about outside Sweden because he's globally infamous.