Is it worthwhile struggling with input profiles?

This is darktable 2.6.2 with minimal processing:

  • turn Base Curve off
  • set Exposure to +1.2 stops (guessed at by assuming the hill in the centre should be about a mid-tone)
  • no ICC profile, just using the built in matrix
  • keep the white balance on “Camera”

You get the same (I think) results in RawTherapee using the Neutral processing profile and a +1.2 exposure adjustment.