How do you guys get sansevieria cuttings to grow roots? These lazy things have been sitting in water for two weeks

I never callus mine. I trim my overgrown ones with a wide "^” shape (upside down 'V'). I stick them in a jar of water like yours and let it face the sun. Occasionally refill the water and rinse if necessary -- sprouts roots like crazy and even further sprouts. Fun fact: they thrive in water!!