Dear Avira,
Either the Chazon Ish said it or he didn’t. The Rebbe and The Chazon Ish were allowed to disagree.
You have ignored my points on your opinions about kivrei tzaddikim. I am even more against it then you. But you think that we are the majority. The problem is that every one was and is doing it. The Arizal was something close to the idea in sicha. To say oitherwise, would mean he was basically a tourist looking for a more exotic kever experience.