So, let me get this right. 'Supposedly', Eurocopter is saying that the shaft can still crack. But if/when it does, there will be a warning in the cockpit so that the pilots can slow down a bit and then land as soon as possible.
Really?
You really think that the CAA are going to go for this? That they are going to release to service an aircraft with a know fault of a major critical component?
And even if the CAA do go for it, do you think that the various unions are going to let their members get on an aircraft with this known fault?
And what about the pilots? Do they want to fly an aircraft with a gearbox with a shaft that is prone to shearing? I know that I don't.