This change (or reversion to how it used to be) affects booking classes only, not service class. If you travel on a Business bucket (Z, D, J, C, A) you will still earn 200% points.
KF has for some time had this weird exception where Premium Economy buckets (B, S, Y) have earned 200% instead of 150%.
As redemption rates also goes back to "normal" I guess we can not say much about this harmonization with the rest of the SAS group.