Well, then they should stop all draws all together.
Honestly, I don't think someone in theirs 420-430 (which probably indicates that person doesn't even have a CLB9 in either english or french, neither has many years of expertise in their fields) will have a better chance in the canadien market than someone in theirs 480 (which probably indicates that person has a CLB10, 3+ years of experience, maybe even some knowledge of French).
I do believe the CECs draws are deeply related to the lack of flights to leave Canada. If the visas for theses CECs candidates expired, they would face a really hard time to find a flight back to their country, and would need to pay a fortune for it. So, to avoid that diplomatic crisis, they're trying to keep as many PGWP visa holders as possible in the country right now.