An avatar is a much more individual entity compared to an automaton, which requires input from the master to do even a basic action like attacking (an Avatar will defend its Summoner acting on its own will). Lore wise, I wouldn't see any problem with manuals for the 'maton. If fact, it would make even MORE sense, seeing as they are mechanical beings.
Skilling up Automaton skills can be a pain in the {rear}, if it is possible to do system wise then they should definitely do it.