In my opinion, this is not a lessening of commitment. It is clearly an obligation for the federal government. It seems to be a more direct way of saying that the government must take positive measures, in the plural.
Indeed, the exact number of positive measures to be taken is not prescribed. It is up to the Crown to decide on the investment and level of ambition, and it is up to the government to decide on the budget. That said, the wording does specify the obligation to take positive measures to implement these commitments.