Although I agree with you that this was not a well-written email at all, I've personally found it to be quite common for people in Spiegel's position to write s

Although I agree with you that this was not a well-written email at all, I've personally found it to be quite common for people in Spiegel's position to write surprisingly badly for business communication. My first boss out of college, for instance, was a multi-millionaire whose general writing style was full of run-ons and countless "fuck"s. It stood out to me quite a bit, but it was obvious that when writing really mattered he was capable of producing perfect grammar, as if it were out of a textbook. I don't like Spiegel either, but I wouldn't take this as truly representative of his writing ability. I think this phenomenon occurs due to a combination of (1) there's a point in the chain of power after which it's more cost efficient to just get the email written and sent than to worry about its composition; and (2) when you're at the top you don't have nearly as many people whom you must impress.