He was keenly aware of looking “strong” in the photos / videos.
His wound was as insignificant as it possibly could have been. If he hadn’t have had any wound it would be easier to dismiss. Also horribly sad but true – if no one had been hurt / killed, it would also be considered a nonevent.
Last but not least,
Orban had JUST met w/Trump immediately after meeting with both Putin & Xi.