Hope she is recovering well!
I'm shocked that Ryanair hasn't got a SOP/policy in place to avoid this sort of accident. Or do they, and it just wasn't followed?
In easyJet, the ground staff is not allowed to remove the steps until they have a permit given by the crew who closes the door.
Hopefully this incident will force them to sort a procedure out to avoid further accidents and will help making their crew safer!