Oh it was an article someone else posted, http://abc7news.com/traffic/san-francisco-bicyclists-protest-outdated-traffic-laws/892465/
A shitton of cyclists intentionally gathering into the same area in protest proves what exactly?
Never are there even remotely close to that many cyclists in the same area in any part of the city at any time.
Asking them to stop is hardly unreasonable. The protest makes it look unreasonable by fabricating a literally absurd amount of bike traffic that never exists in day to day life outside of a critical mass event.