=> A couple of years ago there was a DT that compared several
different ways of achieving this. The proposal you mentioned
was one of those addressed. The DT settled on assigning
3 different site-local addresses that can be reserved for
DNS servers. The solution was documented in a draft (I believe
Itojun, Alain and Dave Thaler co-authored it). But this idea
didn't get concensus in the WG and I think the draft is dead
now but I'm not sure. DHCPv6 allows for DNS configuration in
hosts among other things.
Ok, I only have one word for this: unacceptable.