Yes. You are correct. But I believe that number is not that big to wipe out 2018 qouta or they knew more people will be interested. Thus, they increase their 2018 quota.Do remember that many people who submitted application in Nov 2017 have not received nominations, they will be considered in 2018 quota
I don't see any reason for them to keep the minimum score high unless CIC decides to ruin the show and favor PnP which will lead to higher cut-offs throughout Q1.
It seems that OINP are still processing their back-log and will start the party once the load is relaxed.