Agreed that it's difficult. I think it's fair to say though that (1) it does increase one's chances of pulling it off and (2) it provides some lower risk ways of nudging your way towards relevance with coterm internships and (3) provides a path to a soft landing and saving face if things don't turn out exactly as planned. (3) is pretty appealing to the kind of individuals who consider these programs in the first place.

edit: Worth mentioning is that the career offices of these programs definitely overstate the effectiveness of the "come to our program and get your dream job" aspect. In that sense it's similar to the misleading rhetoric of Law Schools.