Hey Honeyaustin, did you take a course of probability theory and statistics? Do you remember what is Gaussian (normal) distribution? So CRS score of EE pool has Gaussian distribution, with peak around 350-400 points. Peak was close to 15000 applicants with score between 350-400 back in 2015 [1]. Add those 8770 with 400-450. Basically, that's why score won't drop below 430-450 in near future. And that's also a reason why government can't give additional credit to all international students without breaking the balance. There're too many of them with score below 450, so it's impossible to give credit to anyone who got Canadian education. They just won't be able to pick chosen number of applicants per draw. They'll probably give some points to those with Master's, maybe a bit less to those with Bachelor's degree. Others won't get anything.
According to mid-year statistics [2], 85% of invited applicants are already in Canada. So they're international students and TFWs. Basically, I see no way how government can change situation without going back to old "first come first serve" model. But as past experience shows, it just doesn't work, because if everyone is eligible, backlog becomes enormous.
[1] https://lh3.googleusercontent.com/-0z2j5RAc04A/ViN2L66M_WI/AAAAAAAAGao/KabmkLiS2X0/s640-Ic42/EE%252520stat%252520-%252520Google%252520Sheets.png
[2] http://www.cic.gc.ca/english/resources/reports/ee-midyear-2015.asp