Well, I beat vjycoffs for 1 BP (3-0), but I brought a Zapdos (Because I interpreted the no legends rule as no Ubers, due to me hardly ever seeing that rule anymore), so I don't know if it will count or not.
It depends on what he says about it...Technically it shouldn't count because he said no legendaries, but like you said, that rule isn't common at all. (legendaries aren't anything special D:).
Report this in the rules and results thread next time.