Because there is no grounds for a truth claim that he was lethally dosed with fentanyl.
He died of strangulation
Here's that thing. That was
not the medical examiner's initial conclusion. The body politic did not like his original report and raised all hell. He was pesterd until he amended his report to appease the braying mob.
Or, he amended his report because he didn't want to get sent up for false reports.
Of course, this has been hashed over a thousand times, that strangling people for that long kills them.
He died from a lack of oxygen, subsequent to a strangulation.
"Usually" makes no difference.
What has been confirmed through to the satisfaction of the courts is that Floyd died of strangulation.