The biggest issue that I see with publishing this work in a physics journal is that although time travel is certainly a concept in physics, the research involved here is not physics research. I'd describe it as sociological(?) research intended to shed light on a problem of interest to physics. That may seem like splitting hairs, but there's a real question of competence here: as a physicist, I don't feel especially…
And I'm not convinced that's publishable in any sort of competitive journal. I wholeheartedly agree with the vast majority of your comment. However, I take issue with this last sentence. A novel technique is worth publishing even if it is only used in a pilot study of questionable value. Now, anyone can take the technique and expand it to a far greater number of search terms. They can also attempt address potential d…
The other was merely "a reputable physics journal" (whose editorial board had to spend time soliciting papers), which sounds like a more reasonable target. I'm not saying he should have been trying to publish work like this in a journal that has no standards and will print anything, but I think it needs to be aimed at a journal whose rejections are primarily for lack of quality rather than for lack of importance.
And a non-physics journal at that level, in particular.