Cycle paths can be there for specific reasons, which don't necessarily suit all cyclists. Shared cycling/walking lanes for example if they are wide enough, work well if cyclists are going at a slow and steady pace. this is not much use if you are after some serious aerobic exercise, or want to get somewhere quick and quite rightly the pedestrians hate this.car clearly at fault, doesn't see him and should - no hi vis required to see a man in the middle of the road in daylight.
though question why he hasn't used the provided cycle route. whats the point of all the expense of cycle paths if cyclists ignore them?
The cycle path around the roundabout provides a safer means of transiting at the expense of time and convenience. You really shouldn't have to stay off the road to avoid shit drivers.