Intel is still in the planning stages of manufacturing capacity and there is zero proof that there is an actual POC or workable process yet to mass produce 7 nm devices at all, which is going to be much harder than 10 nm to get to acceptable yield.
I'll park this one right next to 'home fusion' and '5cts / KWh installed Solar Power' until there is more proof, I would be quite surprised if there really are mass produced devices for consumer use anywhere in the next 5 years, if the 10 nm experience is any guide somewhere in the next decade is more realistic so this isn't really news.