Agree with your first point, so RTX on with High settings should be the default option that give you both the immersion and smooth FPS. Something you don't get to choose with 5700 XT.
Secondly I play at 3440x1440 120hz (Acer X34P) which is quite nice and manageable with 2080 Ti, 4K 27in monitors are too small for its resolution. Looking to buy the Asus PG35VQ next.
All in all you only pay ~70usd for the RTX tax (14% lower price/performance) which net you some nice immersion that you would never get with 5700XT. And if price/perf is your only concern then there are better options out there since 5700XT offer nothing new anyways.
This is why for most people the 5700XT is better. The 2070 Super is completely inadequate to play games at 1440p with RTX on. It is simply not fast enough to take advantage of the visual benefits of RTX. It is of course fast enough with RTX off but then loses the dollar per frame argument to the 5700XT. For some, the higher framerate will be worth the extra cost, which is fine. You always need to pay proportionately more for higher performance.
The problem is dragging RTX in as a value argument for the 2070S when it barely makes sense in the 2080Ti. For $1200, RTX works well enough where you can get 60+ FPS at 1080p. But 2 steps down with the 2070S? It's far too slow at 1080p, much less at 1440p.