I really dislike this man for the few things I read about him and some stuff happening in Hungary right now, but:
1- Mister Orban wouldn't organize the show himself in case Hungary wins, would he???
2- I'm sure most Europeans don't even know who Orban is and which party won the elections in Hungary.
3- This is a SONG contest. Europeans didn't vote for Angela Merkel in 2010, they voted for Lena, and they didn't vote for that pretty Danish prime minister last year, they voted for Emmelie.
That basically sums it up.
Personally I have never heard of that Orban dude until brought up in here. I believe people put way too much thought into the political aspect of things especially when it comes to what is perceived as a minor event abroad.