That is some seriously swirling and scratching, sucks to see.
I have a B8 S5 Phantom Black and feel your pain! My vehicle already had swirls and scratchs from a previous owner and I plan on polishing them out this spring.
However, since April when I got this car, I've used only Adams products and haven't experienced ANYTHING like that. I check almost every wash for bad swirls just so I can keep tabs on problem areas and haven't noticed any getting worse or to the point you are showing.
When you say swirl remover in your post...are you refering to using a DA polisher? or by hand? Something that pervasive would make me think it was a dirty towel or contaminated pads.