Like most things sas its web page can say multiple things. I can find a sas web page that says there is a lounge in Helsinki and when I look at my diamond benefits page it just says arrival lounge if you are diamond it says nothing about travelling with sas.
I suppose I could spend my time surfing the web more carefully if the wifi on board worked.
anyway, it's a kinda nothing perk for me. I only wanted to use it once and I probably wont again.