If they stop working your point will be 100% correct and valid but as of now they said all previously sold devices will continue to work and continue to be supported.Huawei having their own OS is all well and good. But if the ban sticks, their phones won't do well outside of China. How many people in the US and Europe would want to buy a phone knowing they can't use YouTube, Google Maps, Twitter, Facebook, Instagram, ebay etc?
Trump going to pull an Iran stunt and cancel previous agreements as well here?