Did a bit of background research on this and despite the free blogs and podcasts (which range from interesting to scientifically dodgy) one must remember that Zoe is a for profit venture. Participants pay around £2.5k for the devices and all data belongs to Zoe.
I'm guessing but I think that data will be leveraged at some point to inform providers of foods, additives, probiotics, medical devices, drugs, etc. Not necessarily a bad thing but at the moment they're just collecting data and are not authorised to give medical advice.