I believe you are correct to be skeptical but from your description it is difficult to discern their system and where your efforts fit in. 

So there is no real discernible difference between being in default 150+ days or being in foreclosure or having a DIL.

I have great confidence in your ability to discern those differences.

I use the vestmap.com DISCERN reports for granular location data.

I think with all forms of education it is imperative to be discerning in your learning and not just blindly follow someone into a big mess.

I've also tried looking at those few that showed the more favorable numbers and can't really discern any identifiable similarity. 

I do gain renting, tenant, and landlording experience, but I'd rather hold off until I can afford apartment complexes than small duplexes than won't net any discerning income.

I see plenty of these base hit type RE.When you have more contacts, more experience, and/or are not as eager for a purchase you can be more discerning in your purchases (try to start with a base hit because if you wait for the Homerun it may be a while).Good luck

More to the point, if you can't discern the returns you will receive over your lifetime from a diploma, there is serious doubt about whether you have the foresight to be a successful investor.  

I am also a good listener and I try and discern what exactly my client is looking for, are they looking for cash flow, a quick flip, an interesting project and tailor my searches for them.I find most of my deals on the MLS both as an investor and as an agent.