Do you start putting up drywall and painting the surface of it when you're building a house, and you haven't even finished the framework yet?
No, you have to do it in a methodical, logical manner or you risk botching all the projects, wasting money and having to re-do it.
It's no different for the stripping, trenching and drilling. You can't mix it all together.
Sage has to very careful in this environment not to waste money, anything different and their burn rate would increase and then the peanut gallery would be organizing a lynch mob.
Furthermore, there is a set way of doing things in the exploration world, and would greatly discredit Sage amongst their peers if they were drilling before they even knew fully what lay beneath the overburden. And the market punishes mistakes rather harshly.
I'll leave it up to the geos...they went to school and everything to know how to explore a property.
JMO