I like your thinking!
Mine is different than most with stalling as mine ocurred at the same time as a number of problems at once, cruise control being one of them.
1st instance of stalling followed a clutch switch safety malfunction causing engine light and error code, gas gage not working, cruise control not working. All simultaneously.
You kill throttle when reverse grip, BUT that does not kill all gas which would turn off engine. But maybe it is related to that feature since almost all stall of members happens when coming to stops.