When i flip my 1-man over and expose the lit sunflower heater attached to the top of the 20# tank; and the wind is blowing 40mph….My heater stays lit 
I quickly returned my big buddy a few years ago for the exact same reasons the OP mentioned!
The big buddy works for some; not for all.
I’ve got a 10yr old little buddy that is rock solid though. But i still don’t use it because my sunflower method takes up less space and pumps out 3x the BTU’s.