I don't now if there's a way to translate MOTHER 3's dialogue correctly as of now, unless we ask a japanese member to search the text, although I wouldn't untrust Tomato's translation, since he's an official translator irl.
Anyway, i'll argue that the robots are not the only source of AP we can found for scaling in the game, since we also have in early to mid game:
-Belch's feat of, after being defeated, spreading the cumulus nimbus that covers the entirety of threed in an unknown time frame.
-The Kraken, capable of generating a tornado to attack the kids (Kraken's bigger than the boat they travel in.)
-Thunder and Storm, being capable of creating a storm in fight to attack.

(Storm holds a large palm leaf, which in Japanese mythology is often used by magical creatures as a way to cause storms.)
-And other would be Carbon dog turning into Diamond dog via pure heat and pressure in mere seconds.
At least these are some feats from early stages, sans Sanctuary guardians, since they are refered of absorbing the power of the spot they defend to fight Ness and Co. (Reminder that the power of the spots gived Ness Low 2-C stat, so pretty strong.), there would also be PK Starstorm refered of bringing down actual
stars, which would be supported by how hyped it is as an abilitie being only mastered by the Star master or the magypsis, who were capable ofsealingd the Dark Dragon (Low 2-C character aswell), but these seem more consistent with the current ratings.