Why would it be blasphemy? Sako still hasn't figured out that pic rails are what people want, Optilock is not that good of a system at all! I had them on my M995 in 30-378 and they don't work on a heavy recoiler like that, I got an IOR Valdada pic mount for mine and it works. On the new S-20 they put a pic rail on it, But it's goofy and you are still stuck with their goofy 20 moa mount if you want to shoot long range with it until someone comes up with something better on the aftermarket side. Near mfg makes some good stuff, I have not tried theirs yet.
Don't get me wrong I love my Sako's I have several, But it's frustrating dealing with mounting options, They should have abandoned the Sako Dovetail system years ago.
Looking at the Contessa rail, They have a weird sliding plate apparatus on one end of it if you look at the top of the rail.
Although I don't see the sliding rail in the pic you posted, The ones I looked at in the past had it.
Why doesn't Sako make a pic rail adapter for their stuff? You have to search for it in the aftermaket and their isn't a lot to choose from.