I think they got their analogy slightly wrong but it makes sense. If you want a career in research, a Bachelor's or Master's degree is like enlisting. You won't progress beyond a certain level. Whereas going to grad school for a PhD is like attending a military academy - which is the only path to becoming a general today. A military academy has the added benefit of a guaranteed officer job upon graduation. No such guarantees exist for a PhD.
> Whereas going to grad school for a PhD is like attending a military academy - which is the only path to becoming a general today.
What proportion of officers in the US Armed Forces graduates from the military academies? A third? I very much doubt graduating from one is required to become a general. Being a great political operator is but it’s not like only military academy graduates can do that.