[Spivak]

From your own link:

> The condition is not recognized by the American Psychiatric Association, American Medical Association or the World Health Organization. Critics of excited delirium have stated that the condition is often attributed to deaths while in the custody of law enforcement and is disproportionately applied to black and Hispanic victims.

This doesn't mean that it still isn't a thing. There are plenty of very real conditions that aren't yet officially recognized but when you have the current body of experts explicitly denying its existence your burden of proof is a lot higher.