Same, I think that list is old though and it wasnt updated. I played leona and didn't get progress, but who knows who the actual champions are this week? They only had a few games so not that many champs now? I guess you have to go through the vods and see who c9 and fnatic and them played.
Same here. I played Alistar and it didn't update.
Braum just worked for me.
Edit: Just played Sivir and it completed. Played Ez and Irelia and nothing, one guy played Gragas and it completed for him.
I played Alistar and it didn't update. When I submitted a ticket, the support updated the mission for me :3