Nope. They clearly said reception. If thats what Green challenged hes an idiot. He should have challenged that the WR was down by contact. Plain and simple. We all know a WR gets a tie. We all know that when he hits the ground hes down as long as hes being touched and he was. Thus down by contact. Ball cant be wrestled away when your down.
None of this really matters. Green's challenge covered ALL of the potential issues around the reception of the ball. By challenging the reception, he doesn't exclude anything there.
Challenging the reception means that he challenges whether the pass is caught, caught by Fitz, complete, incomplete, intercepted, down by contact, everything. It is all covered.
But, according to how it is usually called by a ref on the field, I would GUESS they said that the interception was challenged, which was the call on the field...which is how refs announce things. I haven't watched the broadcast yet, but at the game I couldn't hear how the ref called it...but 99 percent of the time the call on the field is challenged, and the call on the field was interception...so that would be what was challenged.
Regardless, challenging it would cover all the crap involved with a ball being in the air and coming down in someone's hands...that's at least the way the refs are SUPPOSED to handle it.