If you know how to handle meat safely, you know how to handle frozen rodents safely. There is absolutely no reason to feed live rodents if your snake will feed frozen thawed. For the vast majority of snake owners it is also much easier to obtain frozen thawed than live.
Feed live if you want to but avoid making excuses for doing so. Live after a certain size in a captive setting where the snake cannot easily escape is a recipe for disaster. It's your snake and your rules but I will continue to advocate for the safety of frozen thawed rodents from reputable sources as long as I have snakes.