To me, this article seemed more like a PR text promoted by Spiegel himself (turning an incident into an advantage), than a violation of his privacy.
I've read many articles in the past that teased him or called him a "dick". This particular one is simply on a different level. I really respect his opinions on the new mobile market, and how he values to be a revenue generating company, contrary to the companies Snapchat was competing against at the time.