1- That’s interesting. I never heard that Torahs Kohanim is more Meduyak than Tosefta.
2- As to your second point, your point is true but the example is either a mistake or a typo. The Zohar Hakadosh says not to wear Teffilin, while without the Zohar Hakadosh we would probably be all wearing Teffilin on Chol Hamoed.
3- I wasn’t calling Torahs Nigle an offshoot. On the contrary, that leads you to the direct will of Hashem. I was refering to reasons given for Mitzvos. For example, if Shabbos is all about remembering the 7th day, why don’t we just eat a big cake shaped like a seven and then go to work?
P.S. When you want to write italics use <em> and </em>