Of course he might, in conjunction with the tweet by the Prez.
Q does not mention other training deaths.
For instance?
Hey, Marine, can you run us down on other non-Air-Force air assets? Screaming Eagles belong to CINC, who else?
There have been plenty of training accidents since Q started posting in October.
And the President has tweeted about some of them. For example the crash of the F-15 in Key West recently.
But Q has only mentioned this one and Capt Michael Green in over 1,000 drops.
Why do you think that is?
The helo crashed outside of Plaster City, CA so it may have been involved with something near the Mexican border, not necessarily a training flight. Perhaps a surveillance flight of some kind.
For public consumption, the true nature of military activities is not divulged.