[swombat]

You're very possibly right. That said, the "Add ketchup to my shopping list" version only sounds good for shopping lists.

If I wanted a list of work reminders, I might have: "Add send contract to john to my work list." which would be less natural... also, in my mind, what I was adding to my reminders was the task to buy ketchup, not "ketchup" by itself.

Anyway, I'm sure they'll add more supported syntaxes, and in parallel people will learn and adapt to the syntaxes that are actually supported.