No. No. No. No. No.
Nothing ever flipped.
You misinterpreted the layout. If you want to say this is U2 and Live Nation's fault for not laying everything out there from the start? For the hundredth time, I AGREE WITH YOU.
If you want to say that those who were not in the know could easily mistake where the Red Zones were posted on the placeholder maps as being the main stage? OK fine, I can agree with that, too.
But that's still just a misreading of the chart... perhaps one that isn't your fault, but a misreading none the less.
The seating chart and the stage NEVER flipped. Period.
Should U2 and Live Nation have given out more information prior to the tour starting? YES.
Has U2's PR team made a million mistakes over the course of this entire album release and tour cycle? YES.
But if you make a purchase based on an assumption and not any sort of fact, and your assumption turns out to be incorrect, that's very unfortunate, but it's nobody's fault but that of the purchaser.