We have the same debate every time Marriott puts up one of these promos. You get 20% off (so it's an promo/offer) but don't need to put in a code to get it (so should qualify for EEO0). I think it should be fine (wishful thinking) but apparently Marriott doesn't. Search for the old threads. Anyway, I try to look for hotels that only have this rate and no weekend or leisure rates. So there aren't any other rates for them to book that would qualify for an EEO BOGO (like packages) and then the csr will usually book it and note my EEO, if not I say thank you, hang up, and call right back. Worked today first try. $79 for two nights is not too shabby. Good luck with it.