Yeah, I feel like people are really overlooking just how fantastic Simple Minds are. ABC have a classic 80s new wave album behind them as well.
That being said, yeah it's not worth travelling for. But it's a lineup I would be happy with if it were local to me
On the Wet Leg crowd - the opening day always has the worst crowd of the festival. A lot of locals show up purely because it's a cheap evening, often with not much interest in the acts performing, so, while the talking is an issue throughout the festival (and increasingly at gigs/fests everywhere) it's particularly rough on the Wednesday every year. I'll only bother next year if I really like the act playing.
The wristband is basically a souvenir these days, which I like, as I keep them. Also I guess for the festival it's kind of cheap advertising as people walk around the city with them on.