That seems like deceptive marketing to me. Once the pull request is merged, then you can make that claim.
Here's the open PR for Jepsen: https://github.com/aphyr/jepsen/pull/70
We've been working with Kyle on this though, and I think he seemed happy to merge the PR (but he's pretty busy). Hopefully will happen soon, sorry for confusion.
EDIT: here is some context -- https://github.com/rethinkdb/rethinkdb/issues/1493#issuecomm....