The variables set in the Analytics extension's Global Variables seem to not fire on all rules/rule types (see Global Variables - Direct Call Rule ). This is similar to how it was in DTM.
It would be great if we had some control over this (maybe give me the ability to say "fire for all beacons" or "fire for all s.t beacons" or "fire immediately before any beacon, but after other rules" or something), or by default they DID fire anywhere the Analytics Extension was in a rule. Otherwise, folks still have to resort to using doPlugins, or setting up a rule for global variables that somehow fires on all other AA rules/beacons.