I'll do a more thorough analysis later, but for now:
Skew? Yes.
Disproportion skew? Unlikely.
Again, we're comparing averages here. I'm not saying that if you go to NSU you will automatically come out with exactly 290k in debt. That obviously isn't' true. However it is fairly safe to say that, on average, you will graduate with a significant increased burden of debt than had you attended LECOM-B, with the difference being over 100k.
160k vs 290k is practically significant data. Yeah, it would be super nice to know the standard deviation, but there's no way in hell the SD would exceed 50k.
As for HPSP... yeah there are probably a higher percentage of NSU students receiving military scholarships but, if anything, that would be lowering the school's average student indebtedness, not raising it, so my point still stands.
Yeah, take it with a saltshaker, but if your purpose is to simply compare schools' financial drain (as opposed to thoroughly analyzing an individual institution's burden), it's still very useful information.
And it is much much much more useful than simply comparing baseline tuition costs, which fails to take into account many factors which, while taken individually may be almost negligible, but when combined can very significantly alter one's debt.