I actually lost my faith in MIRI because of Kruel's criticism, so I too would be glad if someone adressed it. I think his criticism is far more comprehensive that most of the other criticism on this page (well, this post has little bit of the same).
Is there anything specific that he's said that's caused you to lose your faith? I tire of debating him directly, because he seems to twist everything into weird strawmen that I quickly lose interest in trying to address. But I could try briefly commenting on whatever you've found persuasive.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.