Probably just that. Poland also did this during Trump first term, they organised very hostile conference about Iran which had basically zero points or actions beside US vassals loudly proclaiming their allegiance. Iran treated it seriously though and it basically completely ruined Polish-Iranian trade deals (which were not very significant but they did existed) and relation (which were traditionally good).

Bonus points for first-class comedy though when the bumbling fool Pompeo gathered entire room of Polish PiS officials (usually antisemites) and illegally demanded Poland pays reparations for WW2 to some Jews in USA, which make them both enraged and realised they can't do shit since they just at the same day loudly proclaimed their allegiance to USA (nothing real came out from this too).