Did you miss my point about, the advantage as such, never accrued, as it, it was not really an advantage, merely a ball retention. Only Mr Dean will know what happened next but looks clear as day to me he regretted his advantage attempt but was given a lifeline by the foul? That he awarded a few secinds later. And, in your siuation, there would be nothing to stop offended team taking a quick short free kick, no YC was produced by Dean for the advantage foul, and certainly not for the one a few seconds later, which is a debateable foul at best!
If a top referee is giving advise but you think you know best, then next time you get the honour of that kind of prescence, why not politley decline the offer so the top referee can go give his wisdom to someone more worthy.