So they "discovered" what NASA researched and documented 30 or 40 years ago, wow.
FWIW, no matter what they discovered ginger is not a cure-all for motion sickness. It works to some extent for some people and the mechanics of how it works (by increasing capillary blood flow) also explain why it has limited usefulness.
NASA has had extreme problems and a great amount of experience with motion sickness. The barf bags don't have mission-specific logos printed on them though, that's not the kind of PR