Nah, probably not.from how i read it, is not that the field is strong, but that it's so incredibly localised. The molecules arrange along the field lines (H being more positive and O more negative). Since the field lines are so close in this case, and the field's gradient (more or less: inverse of width between field lines) is so high, the O parts snuggle together a bit more, as do the H parts.

Anyway, that's how i read the article. (Please correct me if I'm wrong)

Compressing water, however, does not force the molecules to align (as far as I know). So no field generation by compression - at least not from my understanding of this experiment.