The right way was "Tell him to unignore".
Even tho I see the difference in the wording, it's rather little and both "... or report" and "... or ban" tell the same story.
Both introduce an "do what I say or else ... " situation (for reference please watch this https://youtu.be/Kb21_qI90pE?t=85).
And as you so clearly pointed out, it was issued by a headadmin. How am I supposed to be able to draw that thin line in the heat of the moment? In my eyes it's a threat regardless.
Anyway, that's it from my end.
I'll try keep the peace as usual

Peace.