To bring up this again.
Had a chat with CS yesterday. It turns out, that they cannot waive fees for partner-cards anymore (70€ for Gold) but they don't charge the 170€ for the main card "because your card have the old terms that we don't give anymore" The "old terms" turned out to be the 15k€ p.a minimum spending. In contrast to previous years, the main card yearly fee wasn't charged at all, only that of the partner card.
I asked to upgrade to Plat, but she said they cannot waive the 550€ p.a. fee for plat. No way I'll pay that.
As it is now, having dumped Sampo's AY Visa, I only pay for Amex as DC comes for free (AY Gold perk) MC comes for free (SK Gold perk and Nordea key customer perk) The SK-MC co-branded is nopt strictly free, as it comes with a 2€ invoicing fee
so it's a 24€ fee p.a.