Emergent basically means ‘we didn’t design this capability but it’s there’, it’s always been a thing, not sure why you associate it with AGI so strongly.
Do you think its not emergent because you think this behavior was explicitly coded in or you dont think its emergent because you dont like the implications of thinking it?
Words like emergent, hallucinate, reason, think, infer.. they carry additional meaning. Their use as terms of art in some cases is because for the cognoscenti it helps understand intent by simile, but for the person in the street it is read to mean much more. There are of course lots of interesting emergent behaviours, the patterns in bistable chemical reactions which fascinated Turing, patterns from fractals, flocking models for particle animations from a few rules.