Lot in that... together with how the market size interacts with his licence model. Not to mention, with a bit of diligence, you can put together a free educational package on YouTube that would rival any paid college/music schools. Yes it would lack interaction and feedback from a tutor but in most other aspects its all there. You'd be a pretty competent bass player if you learnt and applied all of Scott's free lessons alone.
I agree the ad is badly worded but at its core is a commercial Ops Director role so hopefully the remuneration is commensurate - sorry, the pay is appropriate.