I think #3 could occur because of #2 (which I now mostly call “inner misalignment”), but it could also occur because of outer misalignment.
Broadly speaking, though, I think you’re right that #2 and #3 are different types of things. Because of that and other issues, I no longer think that this post disentangles the arguments satisfactorily; I’ll make a note of this at the top of the document.
I think #3 could occur because of #2 (which I now mostly call “inner misalignment”), but it could also occur because of outer misalignment.
Broadly speaking, though, I think you’re right that #2 and #3 are different types of things. Because of that and other issues, I no longer think that this post disentangles the arguments satisfactorily; I’ll make a note of this at the top of the document.