""We would rather be over zealous when unaccompanied adults visit us armed with cameras than put children at any potential risk." //
Which, being interpreted means: "we are going to adopt the lazy approach, rather than doing what we should be doing which is remaining - or becoming more - vigilant". After all, who's to say there isn't a father of three there with his children sneakily taking pics he shouldn't?
They did say that all parks do the same, though. If that is true then they must have been the last to join in as a result of this incident