Looking at it from another perspective:
As a former club runner regularly pushing myself to extremes in order to improve competitive racing times, I used run fairly regularly on Leeds & L/pool canal, on then relatively quiet areas around Skipton back in the 1980's. This might involve running flat out, say, between two timed marks, sometimes for anything between five and thirty minutes non stop. Other competitive runners I knew did likewise, often because roads were too busy, congested and dangerous. How do you think such runners feel if, after pushing themselves very hard for 15/20 minutes, and, timing themselves, realising that they are very near a personal best time for a particular session/route, they find their canal path blocked by angling gear?
Probably the same way that a pedestrian or angler might feel with runners puffing and panting in close proximity to them on a narrow towpath.