If you step back, and look at the scenario from the eyes of someone in the future, people aren't going to see it as "Chael called out someone who just got knocked out." They will see it as "Chael called out Fedor!!"
Many want Fedor to retire. But a fight versus chaEl is something that even those people might get behind since it is not likely that fedor suffers shots like he took against mittrione.
In other words, in time, i suspect that thiw callout will prove to a good call out from a business perspective, for both Chael and the emperor
Time is an illusion created by man to make sense of the 4th dimension, since we are prisoners of it. In reality, time exists. Past, present, and future. Brainstorming from the perspective of a hypothetical future has value, and Chael did that. Props to him. Smart dude