How much is the increase in cost in the total price of an S-92? 1%? 10%?
Most likely small potatoes in the big picture.
It would also likely have some unintended positive side effects, like increased overall gearbox life, etc.
And probably a very good marketing point to.
Not really, they would just be living up to the 30 minute dry run capability they claimed when they sold the A/C.