I’m sure you don’t mean this, but it sounds like you’re saying that if airlines don’t provide high-power USB, passengers would prefer the risk of dying in a fire rather than going without their devices. Of course, now that I type that out, I worry that perhaps many people would make exactly that choice. Regardless, I would argue that aviation safety is much more important than device preference - if that means, we all have to go back to paper books, then so be it.
I'm pretty certain their intent was that passengers would be less upset by the rule change, and certainly less motivated to try to circumvent/violate them if they had reliable charging ports available
