Agree with the Airbus guy: It is a myth.  

"Had to use the EP for LTE to get out of the onset of LTE many times." 

Like what "EP," pushing the left pedal?  The Frenchman in the linked video notes that in many cases of "the onset of LTE," the pilot simply does not push the left pedal fully enough or fast enough.  Sometimes they claim to have pushed the pedal when in fact they did not (and he showed the video of one instance).  Helicopters are big weathervanes.  They WANT to point into the wind. Some pilots seem to not understand this basic concept.

There is a helicopter instructor who teaches in the R-44 who claims on his YouTube channel that an American helicopter can get into LTE while hovering with a strong *left* crosswind.  Only a Robbie pilot would think this.  Every real helicopter pilot knows that the left crosswind is your friend, because it helps with the fight against torque and reduces the need for left (power) pedal.  Only a complete dimwit would prefer a right crosswind in a hover to a left. 

EP for "the onset of LTE?"  Don't be asleep.  Stab the left pedal fast and as far as it will go to stop the yaw.