"Perspectivism asks whether it's time to stop calling particular perspectives absolute truth and show some humility"
The perspectivism doesn't oppose scientific method, nor scientific tradition! He even don't oppose rationnalism!
If you remember, Leibniz himself promoted a perspectivist and fully rational philosophy, based on the principles of sufficient reason and fullness, and asserted the need to envisage worlds and multiple viewpoints using a higher and inclusive logic.