Again, there is also value in making Russia engage in more attacks that would otherwise be needed.
And Darth is someone who posts often of this… the risk to the Axis due to the large number of attacks that the Axis has to make early (especially G1) in order to succeed. Each attack is a chance for dice to enter into the mix. And the more attacks, the higher the PROBABILITY of a negative result in one (or more) of those attacks.
Blitzing to Archangel increases the number of R2 attacks by a third, increasing the likelyhood of bad dice by a third as well. 4 attacks is a hell of a lot more risk than 3.
And with only 2-3 FIGs, that means ground units stranded on the front SOMEWHERE for Germany to counter with their 5 FIG/1 BOM Luftwaffe.
And again, Germany COULD Karelia Stack behind that blitz… now it is Russian ARM hanging out to dry either in West Russia or Archangel for the Germans to counter the next turn, and with the Germans just as able to move their ARM to Ukraine as Russia.
So Darth, your point applies both ways, and all that comes into play is who has more dice to roll, and with the blitz to archangel it is RUSSIA that is on the receiving end of the odds reduction by stacking several battles. Even if they were all 75%, that means that odds are at least one fails…
THAT is the final advantage of that blitz to Archangel…