First, the Prime Minister's statement was clear; that takes nothing away from the efforts underway to restart the reactor and to extend its useful life.
Second, the model used to date is not sustainable. It isn't sustainable from the standpoint of health or for Canadian taxpayers. Colossal amounts would have to be invested for Canada alone to continue to supply the global market with isotopes, unless the proposal is commercially viable. It is reasonable to use public funds to meet the needs of Canadians, but not to meet foreign needs.
So the economic model has to be reviewed. I think that's what's underlying the Prime Minister's remarks. The current model isn't working and it has to be changed. That said, in the meantime, the government will shoulder its responsibility and ensure that the market is served.