Yes Rusoro wants the cash but don't forget the unreleased results they got when they trespassed on GRZ's Choco 5 property and drilled there.
A classic case of corporate claim jumping. Drill property you don't own and then after you find something of interest sit on the results and try a hostile take over of the true owner!
Choco in general is a much higher grading region than Brisas and could be developed at much lower capex especially for Rusoro who now own the Choco 10 mill and mine next door.