Dnagir-
I just checked my manual and it doesn't give any different tow rating for a sedan vs hatch both say not to do it. Page 8-14 is VERY short and to the point about towing capacity.
Do you live in the US market? I've heard somewhere that there is red tape involved with declaring a tow rating here, though I can't remember where I picked up that tidbit of info. So it may be possible that while our cars are just as capable of light towing, we are just told not to. I'm just suggesting a possible reason for why so many people say no towing period, while you have official figures.
That said, I do have a 1.25" hitch that I got from etrailers.com it is made but Curt. I only use it to take my bicycles to the trail. I haven't used it much so far, but it seems sturdy. When I started searching for a hitch earlier this summer, Subaru doesn't even offer a hitch option, at least not at my dealer.
I hope that helps maybe somebody can add more.