Just to clarify, the flags allows that particular NPC to view the globals. This is so they don't have to exported for every single NPC (which, as you can imagine, can be VERY resource intensive). Anyone can set a global, even without the flag set in npc_types. That's why you can set it in the player.pl file (which coincidentally has the globals accessable automatically), but can't read it in the watcher script.
This caused me a lot of headache with the PoJ Trial of Execution when it was first changed, but once I figured it out, it was easy enough to fix.
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