It would be really nice if triggering a common event when the value of the variable used in the HUD reaches 0 was integrated into the plugin. It would save us from having to create parallel/autorun events!

Hmm, but even that you'll still have to create a common event for the plugin to select from? It's variable, you can simple create a conditional branch to check if your variable below our equal 0. 

Isn't it already easy enough? This is a sincere question.