You're right. You never see anyone wear sauna suits or use timers in their training. :patsch
Just laying out an example, you don't have to do anything.
I don't think anyone is mistaking anything. Turning a drill into a conditioning tool is only limited by your imagination and how hard you want to...
I love shadowboxing. Most of my training involves it. You can easily train anywhere with just a handheld timer and a sauna suit and do rounds...
