I agree with you. Conventional wisdom? I've heard that misconception only twice. Maybe I've been lucky.
Originally Posted by naugastyle
Overexposure makes contrast and saturation softer as the image is nearer to the shoulder area, or in the shoulder. It's lower in contrast. Of course, if this is compensated by using higher-contrast paper or adjusting levels in digital post-process, then the shadows, being in the higher-contrast mid-tones, can become much harder in contrast. So, in some cases, some areas of image may actually get higher in contrast, but in general, overexposing is the contrast and saturation reduction knob in C-41.