Yes, "deviant" certainly is a weird word here. I'd suggest that what he's after is the oikonomia that requires a techne because it goes beyond (deviates from) the natural (Epicurean) bounds, i.e. with its maximizing aim. That kind of oikonomia seems to match that last line of the Tsouna quote: "On the other hand, 'more' corresponds somehow to 'the measure of wealth' but never amounts to the open-ended goal of traditional οἰκονομία, namely, to amass as many riches as possible through decent and lawful means."
Still, a strange word choice.
Now I have to go watch some baseball. ![]()