If gekko is on the defender side , what happens in a 1v1 situation when a wingman is defusing and gekko dies ? Does the wingman die or does it defuse fully?

I taught the guy all the basics of playing the game properly and a year later he still struggles with them. He was hardstuck silver 2 and then basically got boosted to plat 1 when I woud play with him before he fell back to silver 3. Now he...