Smerel, thank you very much for bringing those two works to our attention; I actually had not heard of them. I went through al hatorah and saw things from the Lubavitcher rebbe that i previously was unaware of, like his outlandish statement that a mezuzah is a shmirah without it being a mitzvah – this is something that likely falls under the rambams classification of using a mezuzah like a kamayah, which he says makes one lose their share in olam haba. It’s the mitzvah that is shomer, not the larchment.
The author also shows something else that’s probably kefirah; in likutei sichos, the Lubavitcher rebbe says that Moshe was only taught the klalim of Torah shebaal peh, and not the pratim… because of a kasha….how could he have learned it all in 40 days; I’m shocked at the arrogance of this kasha – it was Hashem teaching! And Moshe was the talmid! What limit on Hashem’s teaching ability can there be? It’s also against open chazals, such as rashi at the beginning of behar, which clearly says that all of Torah shebaal.peh was said at sinai to Moshe.
I haven’t seen the other sefer you quoted yet, but I’m excited.