Please make sure to make your dissatisfaction known to Finnair, I feel they will only change back if enough of us complain often enough. I recently flew HEL-HKG-MNL; HEL-HKG on AY, HKG-MNL on PR, separate tickets. AY would not check my luggage through but on the return PR happily did so. When I complained to AY about this they said PR is 'breaking the rules' (claiming they would not have been allowed to through-check my luggage). AY also kept saying that this action (by PR in this case) might have had serious consequences for me as a passenger. Some of AY's replies to me had an almost threatening tone, which I found inappropriate.