On this side of the water, this crowing person is unknown and didn't make it into the news I believe (..unless she is the person who got their spiel edited into roughly a 5 second clip about a seeing a fireball, before another alleged eyewitness gave was given a longer and more credible sounding account of seeing debris), she is on your side of the pond, crowing for her 15 minutes of fame (and likely induced by media payment schemes).
On Wedneday evening, over here, an apparent aero-space engineer who has worked with companies that have space experience suggested that from some on board video that it could seem to be related to an accidental operation of the feathering control and that there was nothing wrong with the fuel or motor.
It is true that he too could be just expresing his opinion, or that he is lying or leaking info. Still it sounds more plausable than this crower you speak off (apart from the subtle sexism due to her allowed grandstanding to/for/by the media over there) I agree, most conspiritorals are nut-bags, and 99% of the time I ignore them once I get a whiff of there bourbon.
I feel similar pangs of guilt for thinking that I might be aiding her, specifiacally if she is cashing in on your/her own medias ticket, then that her ill gotten choice and I'm sure many will ignore her for it soon enough like the rest of those who jump up and down about space-lizardmen, secret WW2 icebases saucers, men dressed in hairy suits other wierdness that seems to swim around preporting to be facts/documentary evidence to support their own college a-credited direputable income methods.
It is true that I with many other on learning of a new fuel being used and their being some problem could initially think that might be part of the problem, partially from a possibly seeming fictional account of a fireball, and the way it was initially told by the media over here, my apologies if I seem to give her credence.
Hence why I posted my later comment above. I edited my first comment, at the time I was posting what goes for offical news over from the BBC (via Radio 4/World News) I avoid most tabloids, dislike Murdoc news (who Eliot Carver in that Bond film is based upon in jest, although I think that that charactature of is likely closer to the truth in analogeous way).
I'm glad you befuddled the 'everything is a conpiracy' guy, if they're that far gone down the route to believe any and all things possible, then whats wrong with a little mental 'trip up' upon them eh GG