FWIW, older versions of the AS350 RFMs define the maneuver limitation as:
Do not exceed the load factor corresponding to the servocontrol reversibility limit.
Which is an odd way to put it, since pilots wouldn’t have a genuine way of knowing where the limit is until after exceeding it (Maybe it was a Frenglish artifact).
The latest versions state:
Continued operation in servo transparency (where load feedback is felt in the controls) is prohibited.
However, this version possibly reduces the respect servocontrol reversibility is due and gives the impression it's okay to tickle it now and then.