OTB, I am not going to get in to the discussion of Rabbi Falk’s gadlus or status. Clearly he is a talmid chochom, and just as clearly he is controversial enough to engender a wide variance of opinion. He is not someone who I hold by, but to each his or her own. (except of course, that those who described their “duty” above to give tznius tochechoh appreciate the to each his own when it applies to their chumrahs, but not when it applies to someone else’s interpretation or actions).
As for amulets, since the time of R Yonasan Eybeschutz and R Yaakov Emden there has been pretty uniform rejection of amulets and such things for Ashkenazi Jews. It is entirely valid to take the approach of the Vilna Gaon, The Noda BeYehuda and others that reject their use, So the rejection expressed in this regard is supported by the weight of normative ashkenazic halachic practice for the last 200 years.
Finally, yesh din v’yesh dayon. Who is to measure the denigration of a gadol? By the standard you mentioned, choppy is as deserving of a macho’oh from you as anyone else for his denigration of R’Kook, no matter who else he cites. (He cited the Satmer Rebbe in another thread) But truly, it is a slippery slope – essentially you are sayig that no one has any right to question a posek, talmid chochom, or godol, and no one has any right to call out an egregious or uncomfortable fact about their works.
(I personally don’t feel a need to denigrate anyone even if, as in the case of Reb Yoel, the Satmer Rebbe, I utterly and completely reject his svara. What’s the point?)
Yours is a pretty stifling standard, one that would silence all debate within frum communities. You may think that is healthy. I don’t. And again, if these who are being “insulting” are truly in the wrong, they will be accountable to the aibishter at the end of their days, not to you.