Seems to me if you go in the big 2000-and-up seater marquees at festivals, you are going to get that sort of experience. If you don't like it, go for different venues. At Shrewsbury you could go in the Pavilion, and hear people you wanted to acoustically in a little room.Which is what I did. I dont particularly like big marquees. What I don't do is go and sit in big marquees, hate it, and then complain because I hated it!
   Let's face it, if you want to see two or three acts in an evening that charge fees thousands of pounds , you are going to end up sat with a load of other people and the PA may be loud...that's economics. And if the music is dancy, well some youngsters (or young-at-hearts) will be down the front jumping about and shouting and drinking beer. Personally I don't see that as non-folk. What could be more folk than having a good time while people are playing folk music? THat's fine by me; I am now a touch on the grey-haired side, and mostly inclined to go for the quiet listening space or the pub session, drunk but unamplified, but I have been known to get over-excited.