In my experience as both a graduate student and a faculty member, there is very much discussion about obtaining an academic job and striving towards that goal. On the other hand, there is virtually no discussion about whether or not one should actually want to obtain an academic job, outside of occasional sour grapes from students for whom academic employment wasn't likely to be in the choice set.
When I advise students who are applying to PhD programs now (or are students in our own program), I make it a priority to give frank advice not only about the prospects of getting an academic job if you are coming from program X, but also about the pros and cons of the job.
In particular, what many graduate students fail to appreciate is that unless you are placing into either the top of the profession or a place with minimal research expectations, academia is by-and-large a miserable dead end with (1) minuscule opportunities for real growth and progression and (2) stress levels more commonly found in jobs that pay better by at least an order of magnitude.
We have an obligation to be more up front with students about this. Maybe some people are.