It is a rather common meme to accuse Swedes of not conforming to concepts of British/U.S. law (common law system) when Swedish has another system, not any worse but somewhat different in the usage of terms like "charge".
I'm not expected Sweden to be like the UK/US - I'm Norwegian, and our system is much closer to the Swedish and to the UK/US systems.
I am expecting a prosecutor to not stubbornly refuse to take actions for fours years while claiming it to be impossible, while being contradicted by legal experts, just to suddenly decide it's possible after all.
If that's too much to ask of Swedish prosectors, you have a big problem with your legal justice system.
Can you clarify this? I'm honestly confused - the topic seems to be the refusal and then acceptance of an in-embassy interview. I could understand if the refusal was a procedural issue, but in that case why was it eventually accepted?