Yes drills talk but they have to talk well.
After the drills have talked resource reports compliant with N.I. 43-101 are necessary to prove that what the drills are saying is true.
After that a feasibility study IS necessary. It tells anyone who is seriously interested in investing in this comapny that a mine is not only viable but profitable. It also tells as to what are the expected problems in building a mine and prospects of delivering the mine's product to market.
You do not want to further invest if there is no feasibility study done. Lack of one can be part of the problem why the share price is so low now. Some expect one by now.
The fact that the company is proceeding with one means they are serious about building a mine.
Ed.