While you are in the pool, you get experience for completing 1 year of experience, when you are in your 11th month, and technically people can't accept the invite, as they haven't completed 1 year, hence, they don't qualify for CEC category.
While that being said, March invite cleared everyone except who declined in the Feb and new profiles. And similarly, the one happened on 1st April, will clear most of them (who complete experience in April, and few, who will reject, which will be completing in May).
Hence, I had that put up. I could be totally wrong here, but just a thought I had.
Also, Ontario is going on 4 week lockdown, so, idk what will happen next. But lets see, I really think, they should conduct open draws. It's high time now.