... which in practice means that you would be able to actually use QUIC with the most widely deployed client implementation (which might in-fact be the only client implementation that's not a development build right now).
IETF QUIC doesn't really exist yet, so offering it over Google's QUIC which exists in Chrome would provide next to no benefit to everybody.
However, I do hope, or rather, expect google to very quickly move both Chrome and the load balancers to IETF QUIC once that is finalized.
Until then, I keep my pitchfork safely stored in its closet because what is being offered here certainly is the practical offering and the correct offering would be completely impractical.
At least with SPDY it was clearer that SPDY was something different from HTTP 2.