I'm not sure exactly who put what in my drink, or in my roommate's drink a few months prior to "the incident", but I most certainly was drugged when out at a local bar while attending U of O. I am not going to spend any time describing the situation nor justifying how I and others know this was the case, besides saying that two drinks should not make an adult woman who was an active drinker STILL be intoxicated 14 hours later. And that's not even acknowledging the terrible, uncharacteristic things I heard secondhand about my condition that night and my resulting actions. 
The very fact that someone is questioning the integrity of the victims makes my skin crawl.
These women are lucky to be safe, but I hope for their sake that they have a supportive set of family and friends and access to additional support.
As adults, while we do have a right to drink (and over-drink), we also have a right to feel and be safe doing so -- something not restricted by gender identity.