Nukes may shorten an otherwise prolonged war. "Better off" is obviously very subjective, but I don't see how nukes aren't better off if they end up saving lives. Let's also consider all the direct wars avoided in the last ~75 years, an outcome of nuclear MAD.
The reality of our situation if that we will keep fighting each other, that's a given. Best to test our nukes to make sure they work. Nukes that won't work can't save lives.