Does anyone find it strange that a coroner was present at the execution in an advisory role?

A proud moment in the history of MO...

Emmit Foster, executed in Missouri on May 3, 1995. Seven minutes after the lethal chemicals began to flow into Foster’s arm, the chemicals stopped flowing through the tube. With Foster gasping and convulsing, the execution was halted, and the blinds covering the window between the witnesses and Foster were drawn. The execution proceeded behind the blinds. Thirty minutes later, Foster was pronounced dead. Three minutes later the curtains were opened so the witnesses could view the corpse. The coroner who pronounced Foster dead explained that Foster had been too tightly strapped to the gurney, restricting the flow of the chemicals into his veins. A corrections staff member, upon the coroner’s recommendation, finally loosened the straps, and Foster died several minutes after that.

(Does anyone find it strange that a coroner was present at the execution in an advisory role?)