Greens reign on Parade, or worst cask scenario?

This Sunday the Parade food, wine and music festival will be held in Norwood . In previous years the council's attempts to micromanage the event, eg by banning beer sales on the grounds that a beverage with plebeian connotations is not appropriate for such a hi-falutin' event, have ruffled more than a few feathers. This year, according to the official brochure "The Festival is a Green Event". Does this mean that it is part of the Greens election campaign, or merely that the peacekeeping authorities , presumably including some of the additional police promised by local resident Premier Rann in his electioneering, will remove bottles with the utmost rigour? As the brochure says:

The Parade is a 'GLASS FREE ZONE'. Due to licensing restrictions, no alcoholic drinks are to be served in glass bottles. Any glass bottles, whether purchased at the event or not, may be confiscated. This restriction will be enforced by police, liquor licensing and security personnel.

Taken literally, this edict limits wine sales to cask wines, which may come as a surprise to many of the winemakers whose products are on offer, unless they're using the event as a test marketing exercise for new varieties of container. I must say that the prospect of having sparkling wine poured from a cask (or a plastic container for that matter) doesn't appeal to me. But then everyone who's attended the event in the past will know that the gastronomic delights available are served on paper plates with, if you're lucky, plastic cutlery.

The "Master Glass Artist" who is programmed to give demonstrations of glass blowing must also be concerned about having the fruits of his labours confiscated.