Is I read it, the policy does not address the basilisk and basilisk type issues

It does, in as much as it includes:

8) Topics we have asked people to stop discussing.

This particular entry makes all the others more or less redundant. This is perhaps better than only having the "information Hazard" clause. Because Eliezer deleting something based on the "Eliezer says so" is at least coherent and unambiguous. It doesn't matter whether a post by Roko is actually dangerous. The says so clause can still cover it and we can just roll our eyes and tolerate Eliezer's quirks.