The excerpt says they -attempted- to shoot it down. It also says the nearest the missile got was about a kilometer away from the drone.
This is what I was referring to in the excerpt of the article ...
“TAMPA, Florida, June 16, 2019 —
A U.S. MQ-9 was shot down over Yemen by what we assess to be a Houthi SA-6 surface to air missile on Jun 6, 2019.”