Originally Posted by
intuition
In the past they have indeed rebooked AY J pax onto SK plus. But maybe only in extreme cases. I think it was nov 2022, some action halting just about all departing AY traffic. I distinctly remember the plus cabin on HEL-CPH flooded with Finns and they were grumpy and pretty vocal about how poor the product was. (None of them saw it as an opportunity for double-dipping

I got full Y ticket and earned 3750 tier points on EB)
I literally had the opposite experience, SK put me on an AY flight after I missed a flight because of SK. I asked AY for the points as now I flew AY but they refused, asked SK for flight + points as they put me on AY and they added them to my EB account like a day later.