It’s not intuitive and depending on the band (which may have a little bit of name) it could vary.
It’s possible that ticket sales were already pretty low and a mid group leaving would have cratered future ticket sales and it would cost more to keep the lights on. There could be weird contractual stuff that would force it one way or the other. There may be PR reasons why it was prudent to cancel. It’s a crazy business.
This was supposed to be in 8 cities (now 7). I posted above what the Anderson lineup was supposed to be; here’s the overall lineup for the whole tour
So it is different bands for each location. The Anderson leg was cancelled when the Sunday headliner Shinedown bailed.
And now Creed has also pulled out. They were supposed to be the Saturday headliner in Anderson.
My knowledge/interest in this is that it is local news, and has been for days. I live around 10 miles from the venue as the Freebird flies (but have never had the slightest interest in attending any of the concerts or even heard of at least half of the acts).
As I mentioned, I go to a ridiculous amount of live music and have seen many hundreds of bands live. It almost never happens that there’s a bill with that many bands where I’ve never seen any of them but that’s one of them. Marshall Tucker Band played a local theater recently and I almost went so that would have been it.
I literally double-taked when I read their name on that bill. Lynyrd fucking Skynyrd? Not a single original member left and somehow it looks like they are still all a little older than me. It’s honestly a bit shocking to me they’re still dragging themselves around.
They sort of have an original member. Rickey Medlocke played with them before they made their first record and then came back into the fold decades later for the reunion stuff.
There are a whole lot of bands from the '70s that still tour, even though many of them now have few (if any) of the original and/or “classic” lineup members. There’s money to be made from performing for fans of a certain age.