Running wind sprints (suicides), lifting weights, running into screens, taking charges all cause pain, too, and are a part of development and learning to play through. What level of pain are we talking, did she end up in the trainer's office for treatment. Fine, that is an injury and is unacceptable. Did he make her say ouch, that is just a boo boo. Cuffing someone by the neck and redirecting them towards where they are supposed to be moving or cutting is cruelty, not really.
Putting people under durress is an important part of helping to prepare them to play under pressure. There are appropriate and inappropriate ways of doing it.
There suddenly seems to be a plethora of these incidents. Ambulance chasers or real protection: that is an important issue.