So, her feet look pretty short, but she's not sore or lame at all? If she's comfortable, and not limping, holding her feet up, or having trouble walking, I really wouldn't worry too much about it, especially given that it sounds like she is calming down. If she is comfortable, then I doubt her feet are really "too short" even if they are shorter than you are used to seeing. Many Many horses are trimmed, even by professionals, and left with feet that are actually far too long for good foot health. These links may be helpful to show what I mean. Hoof shape Why Use the Wild Horse Model?
(especially picture #6)
Now, if she is acting like she is in pain or reluctant to move, then yes, some foot protection is in order!