Well as someone who lives right nearby, visits the park from time to time, knows people who work in the park... the integrity of their system has been compromised. Sure, the threat may be considered pretty mundane (by non-sculptors at least; anyone who has watched art students attempt large sculptural installations may get a twitch) but I think that you are massively underestimating the expectation of infrastructural safety in public parks.
Sorry, I'm not sure what you mean– litter? Or "junk" as in something hidden in the statue (far more conspiratorial than I intended this whole discussion to go)?
Edit: I think I know what you mean based on your other reply to me; I'll respond there unless you want to clarify anyway.
I think he's saying that if it weren't handled as a political statement, there's no realistic defense against trash being brought into the park. It's the responsibility of the maintainers to notice - not people to prevent the natural flow of life from happening.
People leave cool stuff places. It happens. I mean how many times have cell phones been left somewhere on accident say, which if it was on purpose doesn't matter either -- OH NO, PARK BENCH SSL CERT MITM ATTACKED, PURGE YOUR LUNCHBOXES
No, it's an object left/put there. So unput it there. That's what parks & recreation does all the rest of the time. Now it's a rad piece of art, not a cell phone, not an umbrella, etc.
https://web.archive.org/web/20111221041147/http://www.artfla... http://www.theguardian.com/local-government-network/2014/jun... http://hyperallergic.com/11146/8-deadly-works-of-art/