While the first import ban was the political equivalent of a petulant child screaming in a supermarket, this current one is a different situation all-together. There’s much more nuance to this - Turkey went into full hostile military action within the space of 17 seconds against Russia.

What you have described is the Dublin Regulation, which has been suspended as of August 24th in the case of Syrian refugees. That means that Hungary can allow passage of Syrian refugees who are en route to Germany.