This is true but it doesn't necessarily mean that academia ought to shift its focus to professional training. Also keep in mind that this has ~always been the case. Sometimes you train with a specific task in mind. Other times you do something open ended and unrelated "for the experience" with the idea that it will benefit you in various ways in the future. Neither of those approaches is always wrong or always right. Sometimes you need to focus but there are other times narrowing your view would materially diminish the benefits of the experience.

I do think it would be good for all levels of academia to be more explicit about the goals of any given program. I think these things are often blurred together to the detriment of both student and staff.