It’s obvious in the sense that it’s basically elimination of unproductive habits. And it might be unlikely, but some people arrive there naturally, without pursuing it.

As for the teachings, I think they’ve been misleading people for centuries. Every religion comes up with rules and symbols to explain the “way to the truth” and mostly what happens is they gain a following that just worships and embellishes the symbols. Those people would have been better off being naive. Maybe then they’d be free to have a visceral insight.