At best, and being extremely generous, "Excited Delirium" is a hypothesis. It is a hypothesis that is widely UNACCEPTED. It is rightfully categorized as
Nailing up a sign over the lab door, a sign that includes an implicit assumption that "excited delirium" is a correct and complete explanation for all the deaths is an abandonment of the scientific method.
The name of this "lab" is an admission that it's now a sort-of religion. Their motto should be "We Believe! And you won't change our minds."
Is it a branch office of The Church of Taser?
There have certainly been some very weird connections.