Art?

I went to an "unofficial" public art exhibition in Finsbury Park this weekend. Artists had deposited works around the park without permission and then publicised the event on Facebook. I got there early, as was encouraged, so I could see the art before it was confiscated by park authorities. This is one of the pieces and, I confess, I don't get it. An Olympic flag thrown into the bushes where parkgoers normally chuck their rubbish? What can it meeeeaaaan?

Also, the park authorities must have Facebook because I saw them inspecting some of the artworks on my way out of the park, though they had left them in place as of this afternoon.