Well, all we have is speculation, no hard data and facts.
Therefore, refering that initial comment to the investigation as party line is a bit uncalled for.
As far as i know the only ones with real facts and access to the destroyed airframe are the investigation board, so they are the ones with experts and facts to reach a conclusion.
As for strafing, i´ve read somewhere that it ´s a dangerous part of combat flying, and not only due to enemy fire, but also because the aircraft is relatively slow, low altitude and a mistake can be fatal, as well as some mechanical failure, but Big E can tell us if that is correct.
Unless USAF accident investigation boards are likely to be politically influenced, and the results manipulated, (i Hope not) whatever conclusions they reach on each accident or shootdown, should be the accurate. And they are the only ones with access to proof, so everything else is speculation.
RIP to the pilot. Whatever else, he died for his country.
.pt