Pioneers can go to great lengths to overpromise safety, budget, and timeline to secure funding.
Not saying this is wise, but at least he went with the customers, so he was all-in with them.
Stockton Rush himself during his public interventions made it clear such explorations were scary and dangerous:
"it made a lot of noise, which is a very sphincter-tightening experience".
With how rich this guy was, and based on the article, it was probably hubris anyways.