The amount of training is kinda-sorta irrelevant. The amount of training you should be putting in is way higher than the amount you need to master the safety. But, the amount of training you need to put in is also high enough that you won’t ever have to rely on the saftey to prevent the gun from firing. So for me, if I can handle the gun without having to rely on a safety, that’s just one less thing that could go wrong and prevent me from firing my gun when I want to.

i guess so but i’d still just argue that you should be training with the safety, such that it’s so second nature to you, it literally wouldn’t matter whether it exists or not.