I would say that it is. We are seeing an increase everywhere. Part of it is workloads, with the work environment being so stressful and people not being able to help one another or not having time to get to know each other. Attributing ill intent.... Sometimes violence is subjective. You maybe perceive that someone is mean to you when in fact it was something else. Perhaps they were rude, but there wasn't an intent to hurt you.
I think it's complicated. We know that this form of violence, when it's worker to worker, is usually more damaging to the staff. You expect your colleague to have your back. If you have that day after day after day, that's then you go on sick leave and get depressed, and it affects your self-esteem.