Just as one can climb out of a well without a rope using footholds in the wall, can one get liberated without following a valid process?

From Vijay Gopi Keshava P

In the man in well example you mention that even using the foot holds one can rise but it is extremely difficult. But doesn’t this suggest that one can get out of material life (although extremely difficult) even without a rope (an authorized process). But there can be no way out without a valid process. How to understand this?