Hmm, so a 200 hour fresh off the assembly line guy wrote the textbook? Oh well.
No, for LTE, the Bell Spin Doctors concocted it to cover up the poor design of the original Kiowa small tail rotor, to avoid the wrath of the Army, after losing a few machines. The LTE story convinced people, including the FAA, that every helicopter is subject to its whims, and when you crash from running out of tail rotor, it ain't your fault. And this myth has been passed on from junior instructor to brand-new student, who then became a 100-hour instructor, and so on.
Only old B206 with the small tail rotor seemed to be affected, and a lot by the way that Fort Rucker was doing its teaching.
A Robinson will never be affected by "LTE" because Frank was a T/R specialist and his design is very efficient.