?? I got very confused from the start of this article because it is clear that Kohler is one end of the communication from how the product is described and marketed. They’re just stating the data is encrypted between the device and them.
That’s not end-to-end encryption. By that logic HN, and any other website over HTTPS is E2E encrypted.
I was under the impression that large companies use proxies so they can do deep packet inspection.
PS: you are right of course.