Sechel….
Avi ezri was written by Rav Shach, not the Chazon Ish. The chazon ish wrote….the chazon ish.
And nowhere in either sefer is there any mention that kabalah is not Torah, chas veshalom. Rav Shach, as it happens, fiercely opposed Kapach, the haskalah -oriented yemenite “rabbi” who denied the zohar and kabalah.
I’m sure there’s ample motivation in chabad to demonize Rav Shach and make it as if he was against everything holy – he wasn’t.
Sechel represents the “man on the street” in crown heights, and CS is attempting to be the apologist, but both are quite telling in the current state of chabad.