You are going to upset someone everywhere. They come out wanting to be upset.
I sing folk songs in a folk setting. Anyone who doesn't like that, politely go away. It is MY setting, and I'll only consider folkies.
The folkies I'll argue with.
Having said that, I only use swearwords if I consider them necessary, and try to cut down the blasphemy. Barrett's priveteers is not blasphemy, the man the singer is representing is calling on God to curse the owners, no differently from any preacher calling on God to strike down sinners.
Or does anyone think that only the appointed and anointed are allowed to talk to God?