This is taking a laptop CPU and stuffing it in a handheld. The laptop CPU already has the npu and removing it would require a new SKU which would cost money for special handling for packaging, new firmware, new drivers, and probably more costs I haven’t considered. You would save on the silicon but unless they have high volume, removing the npu is likely more expensive.
Partially HDR but also full field SDR brightness. They’re a lot dimmer than competing LCD screens (approx 250 nits at 100% brightness).