Yeah its not just insulting the North Macedonian player, heated moments and insults happen alot on the pitch and usually will just be left there.
but the difference is Arnautovics entire career is a huge red flag. He was a nightmare off the pitch for Inter when he was young, and he remained so everywhere else. And he is old now and still behaves the same way, so dont expect him to change a bit. People just forgotten the reason he ran away to China to begin with.
And all that risk just for a decent backup player at best.