Yeah its pretty shit, there have been a lot of NZ born and bred citizens that have declared for PI teams and then had to swiftly move to the NH. The NZRUs reasoning is that the All Blacks are the number 1 priority and the Super Rugby teams only exist in essence to strengthen the All Blacks. The NZRU pays the salaries of all the Super Rugby players and they don't want to pay and develop players for other nations, at the expense of an All Blacks qualified player who could be in that spot. Its also there as a warning to players not to declare for other nations.I see the logic, but its pretty cutthroat. Lamborn would be foolish if he didn't know, its fairly common knowledge and he has to have an agent that let him know. On the plus side if any Hurricanes loose forwards get injured or Blade Thompson doesn't come back from concussion hes probably allowed straight back in given that he knows the systems and its a pretty easy argument to make.
As for Riccitelli, you can see why he left as he was never really a prop. He can cover there but if hes going to go on to higher honours its going to be at hooker and theres no chance for him to play there in the bay.