First time I saw them live, they opened with that at about 9.30 Sunday night and then closed with it as an encore at around 10.50 Sunday night - because they'd already played every other song they knew in between*.
*not in between days, in between about an hour and a quarter
Festival crowds can be pretty poor judges sometimes.
Same thing happened with REM supporting U2 at the Milton Keynes "Longest Day" in 1985. I thought they were brilliant, but a load of pissed up people at the front took exception to them following their downbeat opening with 'Feeling Gravity's...