I don't think you understand.
You're saying, if you're careful, the f/t will be safe.
But if you're careful with live, it can also be safe.
It is the owner's responsibility to feed the rats, so if a live rat bits, it is the owner's own carelessness as well and NOT because the rat is alive.
WRONG!
Last point. You can have your snake bitten REGARDLESS of whether or not you are careful.
If you feed live responsibly, your snake will NOT get bitten.
Feed smaller and more frequently than larger and less often.
There is no bite risk with a crawler or small rat. They're too young and helpless to bite. Like I mentioned in my previous post, it is the adults that are potentially dangerous. I would never feed a fully conscious adult to my snakes.
Like your UTH and thermostat example. Without the thermostat, there is a risk of burning your snake. With a thermostat, the risk is gone, or at least minimized. Same thing w/ feeding live. Feed smaller and more frequent and the risk is gone/minimized greatly.
If f/t works for you, that's great. But no need to say that it's risk free and that live feeding is always dangerous.
There are risks and benefits to feeding both live and f/t. To say feeding f/t is safer is inaccurate.
As long as you're feeding responsibly, there shouldn't be a problem with either methods.