True, it's not certain it will stick. The AMEX customer service gave me the official rationale it brings the Finnish Platinum cards in line with other markets, where the Platinum cards give one 1 MR point per X currency units. I can't see how this will make their existance in the Finnish market any easier. Well, maybe the lack of Diners Club makes them comfortable enough.
Unfortunatey the AMEX ICCs aren't available for EU citizens. I would be tempted to jump ship, if I could get a card that's USD native. Also it seems there's better perks to those, not to mention I suspect the Centurion card is better.