Absolutely correct, I think the comment was about how right now the new site isn't letting some people do their +10 days. If I go online, I can book exactly 180 days from today, but if I call I can do 10 more days... they haven't adjusted the number of people taking calls though, so you can call later in the day and still wait an hour to get through.
Congrats on getting the one you wanted! Maybe their site problems are helping you out there.