Isn't it our job as the FIELD recordist to catch the best sound we can in the field, and POST to mix it to get the best mix?
I agree we are mixers as well as catchers, so if we give them both, don't we allow POST to clean up any problems that might be found??
Depending on the shoot Feature, corporate, commercial or drama. Some need to be mixed on set/field, while some they want ISO so it can be built up in POST?
The problem is that once recorded and it goes to post, it's too late!!
Because sound isn't seen during the shoot, it only becomes a problem when it is too late.