It's one of those ironic things Burners are fond of, like saying "Burning Man sucks, don't go" or greeting people with "Fuck your Burn!"

There is a sentiment among long-time Burners that the event is past its prime, and was much better years ago. This is a swipe at them.

I first encountered this kind of attitude as a Deadhead. In the mid-80s there were plenty of older Deadheads who would bemoan the lost days of 30 minutes jams and how much better they were when Keith was still laying keyboard, and so on.