Music comes in all forms and shapes.
I think it's ok to have an opinion about anything, that's not an issue here. But c'mon, he is now some sort of PR for his own country and people will start to look at Portugal through his comments, I don't know if you understand what I am trying to say. Plus, Eurovision is in Portugal RIGHT NOW, that kind of comments about ANY participants that came to Portugal doesn't do any favour to the host nation.
The fact he won Eurovision shows his music and all kinds of music, has place at ESC. You cannot expect similar songs to win year after year. That was never the point of ESC.
It would be great if someone can give us the whole interview in English so maybe we will be able to understand the context of what he was saying, but still - it was not ok.