When we look at pictures our eyes read the lighter areas more readily than the darker areas. We have all made those prints in the darkroom, that despite many test strips, we didn’t notice that white blob when making a final print. For this reason loss of shadow detail is more acceptable to the human eye than loss of highlight detail. On a print we can burn in and/or reduce contrast. With a transparency/slide it is not so easy to correct. Therefore a slightly dense transparency is more acceptable than one where light parts of the image are literally missing. Incident readings are less likely to give over exposed highlights. However, all pictures are subjective and I do respect your point of view.