because, in the end, ULA (whichever flavor it is) leads to IPv6- to-IPv6NAT.Only if you think in IPv4 terms.
And telcos, cable companies, and my grandmother often think in IPv6 terms.
Itojun is most likely right. Most people (and large corporations) tend to go with what they're familiar with.
Regards, -drc _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf