Regardless of the law school predictor tool, your arguments are based on the premise that the user wants to RETAKE the LSAT and is CAPABLE of scoring in the 170's. While you did show me a handful of cases of 170's with low GPA's getting into Northwestern, you have to remember that the user scored a 167. If the user thinks he would be able to score in the 170's, then obviously he should retake and apply again next cycle.
If OP was scoring in the low 150s, it'd be a much stronger case for "don't go to law school." The fact that he already has a 167 means he needs to fine-tune his methods and retake it. If he doesn't want to, that's cool, then he realistically shouldn't go to law school.
Look, let's pretend OP got an 100k scholarship with no stipulation. That's pretty unlikely, seeing as OP's GPA is well below USD's 25th percentile, but okay, let's play with that number. That leaves OP with about 70k for the worse. Is 70k for the worse and three years spent in school really worth a slightly-less-than-coin-flip chance of becoming a lawyer?
Even if you still say yes, realize that the vast majority of those that end up as attorneys work in what TLS likes to call "shitlaw." These are small firms that do bottom-feeder work/document review/family law/etc. for an average starting salary of 40k a year. Assuming you don't want to end up here, that 47% number now becomes, at the very best, 17.4%.
That's a 17.4% chance of getting a federal clerkship, biglaw, or public interest/government if you go to USD.
So yeah, USD is a terrible school.
Not everyone asking for advice here wants to/can take a year off and retake the LSAT.
Anyone determined to go to law school this cycle (at the expense of a well-deserved retake) is making a horrible decision. This is like going to a car lot ABSOLUTELY DETERMINED to walk away with a car. Chances are, you're going to get hosed. You must be prepared to walk away, and if you can't do that, you're playing with fire.