For a new student, it might be a logical interpretation. "The profile takes you from FAF to 50' over the threshold (by definition) and indeed the DA is somewhere on it. With cold airmass, the whole slope gets flattened: yet there is no need to make corrections as the profile has been smartly designed to cater for this effect down to -20 deg.C - NICE. At the same time, the DA needs to be manually adjusted at -0 already ?! WTF...."
Dutch:
- the (M)DA is the minimum and we are not allowed to go lower than that, geometrically. Hence the correction.
- the profile is just the slope from FAF to THR. You are safe as the flattening had been taken care of, as long as you observe geometrical the (M)DA.