The Target Luma settings have no impact on LUT calibration.
They just set the target for calibration reporting, etc.
If you want to know how accurate your calibration is to a defined 'standard', the Min/Max Target values should be set to those values.
(See:
https://www.lightillusion.com/viewing_environment.html)
As SDR is a relative standard, if you want to see how accurate your calibration is to your TV's actual black/white levels, then set the Target values to always follow the Profile values.
SteveSteve Shaw
Mob Boss at Light Illusion