IIRC, this happened in a WWC game and the call was as described.
For me, it depends on the slip. I think the technical question is whether the ball was actually thrown--which it sounds like from the ball landing out on the field. The farther the ball goes, the more likely the I am to agree with the Q&A in a live match--kinda have to actually see it for me. (And the younger the players the more likely I am to decide the ball was not "thrown" so nothing has happened yet.)