Are you suggesting CPLs don't do CFIT?
Of course I am not, but clearly it's a different situation for a CPL on a commercial job with passengers who need/want to get somewhere compared to a PPL who can choose to fly or not and should not be operating under the same pressures
PPL pilot + CPL task = more likely to end in a CFIT than for the same job with a CPL pilot.
If this is not the case then there is no point anyone doing professional training (other than too earn money legally)