I do believe that IPv6-only (with nat64) is an excellent approach for mobile
networks, and I hope we will soon see this in widespread commercial usage.
And this above point too.
The draft only includes a green field corporate LAN as the use case
for IPv6-only.... and testing. I believe adding the above points will
add mobile IPv6-only APNs as another relevant use case, not for
special purpose sensor networks, but generic IPv6 capable phones with
NAT64 systems to access the Internet.
I am perfectly fine with saying that dual-stack is the default IETF
recommended strategy as long as we also say that with some
consideration and qualifications IPv6-only can be just as capable.