I would be more interested in the ten-year outcomes of something like the Lambda School versus self-teaching or using cheap online resources and entering the job market. Either way you're going to have to start with a very junior and entry-level position in order to crack the job market. But at least you're not on the hook for a huge chunk of your paycheck.
Sure, but controlling for different student backgrounds is a super high standard. Very few people try to control for example colleges by student background; almost nobody would say that Stanford admits having high grades is a point against Stanford.
I'd like to see ten-year outcomes before claiming this. That said, it's also hard to control for different student backgrounds.