The swipe needs to be recognized as such before the prioritization, while a separate home-buttom IRQ feels more immediate and hence "reliable" under most mental

The swipe needs to be recognized as such before the prioritization, while a separate home-buttom IRQ feels more immediate and hence "reliable" under most mental models. One could argue that any tactile event would generate an IRQ so it shouldn't matter whether the interrupt handler is from the screen or home button, except that there intuitively seem to be many more branches and CPU cycles required to determine the actual priority/intent of a tactile interrupt versus a smaller set of branches required for the home button.