While i grant there is no explicit statement of the +2 "hot sim bonus" for AI characters, there is a lot of implication that they get it. They have 4d6 initiative, as well as other examples of how they function being worded very similarly to a normal hot VR character.
From a balance perspective in my games AI have needed the +2 or they are even less relevant compared to a normal decker/rigger. An AI already loses out at char gen to a meatbag because of limited qualities(mostly lack of perfect time) and lack of drugs, as well as a very pricey Metatype in builds already tight on resources.
AI's are extremely limited in what they get for the cost.
Emulation is useful in an equipment pinch but makes gobs of OS and DP penalties.
Pilot AI's "jump in" is limited to a single vehicle type(ground, air, ect) so they can't even use the full range of drones like a normal rigger could, but can plug and play any transport of their type, no rigger mod needed.
Getting configurable buffs to gear limits is cool, but your DP are behind the meatbag already so.....eh only really helps defensively. And you need that defense, badly, cause a bricked device is worse then a meatbag going into overflow. Essence loss and programs lost forever, compared to out of conflict for an hour for the meatbag. And lets not forget those programs cost karma like spells.
Let's not piss on the poor things any more then already happens because of a lack of explicit statements.