If the contact play was not on, then I don’t think signs have anything to do with it. With no contact play on, Yoan could have just stupidly reacted to what he initially thought was a ball hit slow enough to allow him to score.
I guess this discussion is dumb though. I’m not even saying I think that’s what happened. It was likely the contact play. I just found it amusing that everybody reacted as if they KNEW, when in reality, nobody knows for sure.