Just for some perspective, the whole concept of paying "$XX" for a car and expecting it to be without flaws is entirely relative. Having been a 'car guy', owning 26 vehicles now and being on forums for pretty much all of them, I see the same comments at nearly every price point. People have said they expected their car should be flawless because they paid 30K for it, despite the 30k model being a touring trim added on top of a low 20k base price car.
The cost is really irrelevant. You bought a new car, you expect good results...and that will be the case no matter how much you paid for it.
Also true though...every new car has issues. Every single one I've owned has the same sort of threads, especially on first model year vehicles.
While I understand and appreciate the frustrations, something like you see posted above (wet sanding marks) is correctable in about 30 seconds of polishing...even by hand with an off the shelf rubbing compound.
So yes...it's annoying, and some of these issues are not easily correctable. But this particular one is. Very easily correctable. Should you need to do so yourself? No. Is it worth the self entitled superiority complex type comment how you spent "$XX" money on a car and expect perfection? That's your prerogative.