That paint damage seems very trivial to me. I'd still describe the frame as in excellent condition, unless there's something we aren't seeing. Also, the shipping delay was only 2, 3 business days. That's completely standard. And a "bike box" is just standard cardboard.
I'd complain that it was poorly packed - it was - but keep in mind you still got a great deal. That bike would go for 3-400 in this market, easily.