A folk festival without informal sessions and singarounds, and dancing in the streets isn't a folk festival. Given that there are a lot of real folk festivals around, and it's impossible to get to more than a fraction of them, I can't see that there will be much reason to go to Weymouth that weekend.

Looking at the Folk Roots list for the equivalent weekend this year, it looks as though there won't be any shortage of alternatives. Weymouth looks a pleasant enough place - but then so does St Neots, for example, where they never seem to have these kinds of hassles from the council...