Ha … I could never imagine such an improvement from false color suppression !!. Although I prefer to kill the artefact at the root …
Ingo, have you researched the reason for this pattern ?. Is it a small movement or is it the strong CA ?. In the previous sample with the cat I think that it should be a movement … but here we have no problem in the nearby area with the letters !! … or is it a rotational movement so it increases as far as we get from the center.
EDIT … if we try with the Low light version https://www.dpreview.com/reviews/image-comparison?attr18=lowlight&attr13_0=pentax_k1&attr13_1=pentax_k1&attr13_2=pentax_k3ii&attr13_3=pentax_k3ii&attr15_0=raw&attr15_1=raw&attr15_2=raw&attr15_3=raw&attr16_0=100&attr16_1=100&attr16_2=100&attr16_3=100&attr126_0=highres&attr126_1=highres&attr126_2=highres&attr126_3=normal&normalization=full&widget=1&x=0.29062067021636845&y=0.10783620532730145
I thing the result is better because any mirror/shutter shock has much smaller influense due to the long exposure (3sec).