(This was on the west side of Madison off S. Whitney about a block from Toki middle school. Where there are oversized streets) The only reason (besides not being in a hurry and trying to waste time) I didn’t pass is because I was concerned he would lose control and end up swerving into my path. Note: the majority of side streets in Madison WI do not have painted lines in the center. So legally I could pass.

"Because it doesn't apply in this case. It wasn't the bicyclist's speed or position making "passing difficult", it was the fact that there wasn't sufficient room to pass safely under any circumstances"
True but also if I remember right in the video it was a double yellow line with no breaks in it which I think it’s safe to say all states consider that “no passing.”