> What’s his next step if the authors publish as an information RFC? He can’t stop that, right?

This is a slightly complicated question. There are several main routes to an Informational RFC.

* Through the IETF Stream, either through the Working Group (what is happening now) or via sponsorship by an Area Director. The former is what is happening now (this document is not up for Proposed Standard). I don't think the latter is likely to happen if TLS WG decides not to publish. If the TLS WG does decide to publish, then there are a number of steps afterward (AD review, IETF Last Call, IESG Review), plus potential avenues for appeal at some of these stages.

* Through the Independent Submissions Editor (ISE) (though in another comment wbl says that the ISE is not going to publish cryptography standards https://news.ycombinator.com/item?id=48812844). This is essentially at the sole discretion of the ISE and can't be appealed.

In either case, if the document makes it through all these gates and is eventually published as an RFC, then that's pretty much it, as RFCs aren't changed once published.