Bringing in Rav Gedaliah Nadel zt”l is a joke.
Do you have any idea about Rav Gedaliah zt”l he gave shiurim about cetain things, he never wanted certain things publicized. Too the extent that he did you had to recieve permission from him to attend the shiur.
I personally know people who were close to Rav GEdalaih zt”l and yet were never allowed to attend.
So then someone someone goes ahead and publishes a sefer of his opinions based on some shiurim. All the talmidim were furious, as in really furious.
And now that’s your source?