Unfortunately this is not aarch64. There is something to be said for having a single instruction set, makes package building and distribution simpler.
I guess as long as they won't ship more than a couple GB of RAM they won't bother with it.
Edit: forgot to mention Pine64 starts at like 15 usd for 512Mb Ram or 19 usd for 1GB and like 29USd for 2Gb also from 19 usd up they have gigabit(can be hard to max out due to various issues IIRC, check forum), and the high end version is still cheaper than a RPi3 IIRC
edit: tried both armbian and android