Or they didn't want to commit to the extra shows until demand was clear
I think the whole point is that only Superstar Divas used to be able to operate like this.
Now, even "starving artists" are employing grey-area price-gouging techniques.
My anecdata is that concert fatigue is real.
I doubt this is going to bode well in the mid or long term.
My crystal ball doesn't work any better than anyone else's though...
(I just invented that term, but it's real for me!)