There is no psychiatric diagnosis of “excited delirium.” The term appears to be made up by lawyers for forensic purposes. That may make it a term of art but it has no scientific validity.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3088378/
Individuals in emotional distress because of mental illness or emotional distress because of drugs (coupled with mental illness) has been documented for decades. There are accounts of people having "super human" strength when they're confronted or feel trapped.
The usually suspects want to shift the focus from a real event (excited delirium) to 'racist cops killing innocent people of color'.
This report was put out by the 'Physician for Human Rights'. Their name implies a bias and a narrative.