sorry but as far as I know, nobody EXACTLY knew if Articuno was going to be "event exclusive" or rotation as the dogs. I thought it was going to be event exclusive and was afraid to lose it once the event finished if I didn't catch it (thank Arceus I did). I don't know if it was posted somewhere that it was going to be rotation legends and I missed it.
Anyways, the event overall was fun but it was missing something, I don't know what, it was stressful at times lol. I just wish I had more than just 1 shiny.
Happy new year π₯