I think I disagree with everybody.

A good rhythm player can anticipate the bum notes by the vocalist and/or soloist and can make it sound pretty good. In fact that's your job. Eddie Condon, the famous jazz banjo/guitar player said the rhythm player should be felt rather than heard. A good accompanist can sense the technical limitations of the soloist - and help them occupy the space he or she desires.

If you're experience is different like the guy in Sturgeon's video, whos finger is being held . Well that's one kind of music - its not exactly the generality of things even in folk music.