It would have been historically correct about Simus, but I recall that she distributed that authority to the newly formed four Heads; then again, originally Simus was appointed by Steve, and answered directly to him, without regard for the Board of Generals. Oh well, maybe I should be more concerned about a trial of peers at this point. Also, as for how Miyamoto finds out, I'd say that the explosion was a bit big and made news; so whenever he comes back from the mission and checks the log of Hephaestus events, he'll probably find out by himself.
Despite this particular concern, I have found that irc testing is actually very nice and fast method of doing things; it would have taken me up to a dozen updates in Heph thread to do all the testing I made there in a couple of hours. Maybe there should be some kind of "chaperone" or something to help with such cases, someone with good gut feelings, like Aoshima put it? Because honestly, I felt nothing special about this particular experiment; I was actually far more concerned with passing through dense materials and after-transportation impact (as evident by the protective measures I took). And I still cannot figure how it could possibly know "when to stop", avoiding similar explosions when it arrived at dense matter outside that experiment (in regular use); it shouldn't have been set, it should have probably been "analysed on the fly", thus with the experiment resulting in sudden stop rather than explosion. Alas, I was mistaken.
Also, Paris, thanks for passive testing idea. For some reason I completely forgot to scan the rifle itself, focusing on the transporation process instead.