Don't know what the bloke said in this instance so I can't comment on the rights & wrongs of that HOWEVER...
In and of itself Rule 248 is something that Harness Racing should be deeply ashamed of.
It is an abhorent gag order on free speech & if it were challenged outside the confines of the Industry it would not stand up in any Court of Law anywhere in the land. The now defunct utter shambles that was the GHRRA tried to pull that one on a couple of people who were highly critical of their operations & were duly stopped in their tracks when the totally unconstitutional nature of Rule 248 was highlighted to them.