You’re playing semantics. It could be called assault and that would fit better. But in employment law terms he would have a hostile work environment claim and that would count as abuse.
It is assault.
Here's the thing about hostile work environment.
Dray, a known hot heat and loud mouth, is shown in the earlier interview posted saying that Poole was a hot head and loud mouth.
......and that Poole's ways might have bothered other teammates.
Certain the Warriors have footage of Poole saying and gesturing all types of wild shyt to other players in practice since he arrived there. I doubt that this is the first time that others had to step in and try to de-escalate an argument that could potentially turn physical involving Poole.
That extensive footage would suggest that he had a hand in creating the hostile work environment and climate that boiled over.