I thought the same thing. Here's what happened with us. Wasn't fun.
We'll just an update to my question, they didn't let us park in the terminal and we were sent to an offsite structure with bad directions and we got lost, finally got to where they directed us too and they turned us away saying it was full, sent us to another structure that had a long line waiting to get into it, and cut off it right after the car in front of us. Sent us to a 3rd location up the street and then we had to walk back to the structure to get on the shuttle bus to the port. We arrived to the port finally an hour after our check in time. My husband was so mad! (along with many other people) Very frustrating way to start a cruise off.
That being said, we had a nice time on the cruise and the Miracle was in very good shape.