@sadekj most likely because a lot of the seller got FUDd. Rumors are swirling about it got cancelled and some fake accounts and competitors are firing up that rumor by accusing BAT's team as scammers for only releasing the review version. Although the team did say that they will release the full version next week. I think that's the weakness of BAT's team, they lack clear communication skills.
Another theory is that because XRP and Stellar are rallying at the same time, a lot of people are thinking they can make a quick buck by booking their profit early after the review was released. If this theory is correct, then I'm sure those traders will return near the full version release time.
Thanks. That clarifies the situation a little bit.
I hold a lot of bat and I do think it is a good investment on the long run.