Lyrics can't destroy a song for me, unless they're talking others down or doing something else I don't feel comfortable with or don't agree with. Music and vocals always come first.
Kuu could also sing in her own language and I wouldn't mind that much in the end if I like the song.
I'm fine as long as I can get the guts of it, in Shhh!'s case it's probably supposed to be a flirty and powerful woman kind of song, her get to go theme.
Themes and atmosphere are more important to me, I guess.
Though I would be nice, if she kept English smaller like in most of her older upbeat songs. It feels more like her and she can be more direct with what she wants to say. In recent fast songs it's a hit and miss with her incorporating English. That's a point I do think is a pity.