Some people feel so rushed and nervous sitting in front of the crowd that they fly through gift opening. They are also trying to treat each gift equally. Can't really oooh and aaaah over a new carseat so if they jump up and down over the quilt, others might be offended. I try not to be offended by anything.
See if she says something nice later on when the hormones have calmed, she can see her feet again and there aren't 75 people staring at her hoping she will hurry up and finish opening gifts faster...