RebE,
thanks for the reference! Note that the author is niftar 6 years ago. The English sefer is a translation by a student of the original 2009 sefer. So, unless there are fault by the translators, someone is now attacking a Talmid Chacham who is not able to answer ..
I can only add here a minor personal edut. I know some members of the extended family and they are big baalei chesed and ehriche people, making a difference in lives of many people, some of whom I know personally.