This device has a backlight enabled by a physical button, and navi refresh rate doesn't matter because you're riding and not staring at it. 1Hz is fine for a reference.

Not sure why needing less battery or having better at-a-glance visibility would be such a bad thing.

One need not love a device, that's ok. But digging to invent a reason to hate it also doesn't seem necessary.

  > But digging to invent a reason to hate it also doesn't seem necessary.

Refresh rate does kind of matter. 1Hz imposes an average 0.5s latency on any update, which would be obnoxious in some situations.