I'm just going to interject here to say mimic shadow kick is +14 on block at mimimum. I don't believe it will ever be lower than that.
That said, I don't think a solid argument can be made for SD having better pressure. After a blocked MSK, you aren't in range to do standing 1 or throw. SD mixups are fairly straightforward and predictable. In additon, they can take the hit of the MSK, and there isn't much you can do except do MRS if you read they will take the hit. A-List has very few opportunities to take a hit to get out of his pressure, and much more varied ways for you to mix it up and try and be unpredictable, or at the very least just throw them if their defense is on point.