clearly, freedom and easy access to information has nothing to do with the issue at hand, which is enforcement of copyright law.
so long as they don’t plan on violating russian or chinese (or whatever country’s) copyrights (and other applicable laws), why should those countries care at all? archive.org is hosting material copyrighted in a country where said copyright can be enforced (the US). it’s really that simple. while china or russia may not be the most suitable option (I imagine they also host plenty of content that those countries would find to be inflammatory or illegal but not for copyright reasons), they’d be an improvement overall.