Magenta highlights vs raw clipping indicator vs filmic white level

Somewhat better, but v5 or v6 + luminance Y are still better:

Could you please explain, why the bright sun disc gets mapped to a low brightness in Magenta highlights vs raw clipping indicator vs filmic white level - #3 by kofa ? Is that done to preserve the strong magenta colour caused by the raw clipping (the only way to preserve the hue is to reduce brightness and maybe saturation)?

Here is the raw file (CC0 - Creative Commons)
2022-05-01_20-04-21_P1070278.RW2 (10.5 MB)