Goku isn't exactly the type to kill unless provoked. As Dragon Ball Super Chapter 85 proved, Goku did give Gas and Elec the chance to flee. However, it doesn't seem like Gas will take up the offer.

Warning: Dragon Ball Super manga chapter 73 SPOILERS Follow! Goku previously battled Granolah using Ultra Instinct in his base form and even revealed that he’s now learned how to use UI while in ...