For me it was the reverse: The first half of the article describing the warped perception is far more interesting to me than ABMT.
Having a mindfulness practice, I don't see ABMT as going to be anything more than a bandaid. That bandaid might have some temporary effects, but it doesn't address existential suffering at all.
Further: stuff like the Wim Hof (Iceman) breathing method has greater effect because it teaches your mind to gain awareness and control over your body's fight-or-flight response. It won't address the emotional and mental stuff (which therapy and mindfulness practice addresses), but it does teach your body not to spiral out with fight-or-flight responses, and gives you enough space to work with these emotions.
I was also thinking about it: what do I see when I see pictures of violence and threats? Maybe I am idiosyncratic, but when I look at it, I tend to feel a lot of pathos for the suffering involving both the aggressors and the victims rather than personalizing it as a threat to me. (That is, instead of thinking "OMG the world is not safe for me", it is "That's a lot of suffering we're inflicting on each other"). Having pleasant pictures is not enough. The deep mental programming also needs to be addressed.