This makes sense. Most of the Jetson/Xavier/Nano boards already use a Carmel ARMv8 chip. I just hope this spurs more development in ARMv8. Currently the majority of ARM is ARMv7 (smartphones and Raspi).
Smartphones have largely been ARMv8 for the last 5 years. Raspberry Pi is as well these days.
edit: also re smartphones, Android SoCs started to move to v8 CPU cores 5 years ago, in the Nexus 5X/Pixel 1 generation.