ORPP was mainly a vehicle to create another large, deep-pocketed customer for ON's deficit-financing instruments. (ON, not having a sovereign currency or federal bank, has to finance its deficits conventionally. Having organizations/agencies with lots of funds available - particularly organizations with mandates to buy highly-rated debt - is critical to ON.)
CPP expansion is simply the same gambit, but the pool is expanded at the expense of all Canadians who get to enjoy the low CPP investor's rate of return. (There is neither a current nor likely pension crisis among the middle class; all dollars being fungible, increased CPP contributions directly reduce other retirement savings, so the CPP expansion should generally be expected to lower expected retirement income.) That is why the reform was structured to start with more contributions immediately, with increased payouts well down the road. (Current retirees get nothing extra and soon-to-be retirees will get very little. Only people with many years of contribution time remaining will benefit much, but their contributions of course go in immediately.)
ON, by inflicting this sh!t on everyone, is not being a very good Canadian at present.