There's definitely a niche for Hooverphonic because the general response has been positive, but the main problem has always been one of mood. Most people who tune in want to be entertained and have fun. "Uno" and "On fire" are going to score. They're fun. "Release me" is morose and sullen, which isn't a particularly fun mood to be occupying.
I think they can qualify (in 6th place at best because Russia, Lithuania, Sweden, Malta and Norway will be the top five in the semi), but they risk being completely forgotten once they've reached the funale.