Anyone who honestly knows ‘exactly’ what the customer ‘really’ wants is a genius, each customer is unique, yes their are behavioral similarities but no two customers are identical.
A good designer (industrial & product) is great at critical problem solving… plus has the skills to express their solutions in a legible manner. Little more than that. I also think it is irrelevant to try to separate the difference between the 2 types of design title… they are pretty much just titles, no much more.
Good luck!