Is ARAM NOT a matchmade game mode?

On the Twisted Fate side of act 1 for the Bilgewater events, the objective is 25000 gold in ARAM and 50 assists "in any matchmade game mode."

I just played 2 games of ARAM: Janna 5/9/29 (over 13K gold) Caitlyn 10/9/25 (over 12K gold) (http://matchhistory.na.leagueoflegends.com/en/#match-history/NA1/216460380)

It now says that I have 25000/25000 gold, which is correct. It says I have 0/50 assists though. Correct me if I'm wrong, but I was matched in to those ARAM games and my total assists are 29+25 = 54 > 50. So why is it reading that I have 0/50 assists?