Re: [At-Large] Pakistan YouTube Block affected wider Internet

But Internet stability certainly ICANN's mission.

It is? Not in my opinion. ICANN's mission is much narrower. Focussed on coordination of certain global identifiers. To be even more clear, a key word is "coordination". The main part of that system where "Internet stability" comes in is some parts of the DNS (e.g., TLDs and the root zone). It is not ICANN's mission to deal with every aspect of Internet security or stability, and the Pakistan YouTube incident is far out of scope (or competence/ability) for ICANN to get involved. Thomas