You know that your statement is heavily misleading.Before 2014 there was conservatives and they only gave PR to 5000 people a year. And they bring express entry to reduce numbers for immigration by increasing score but than liberals changes everything. CRS use to be around 480-550 before liberal won election. I support conservatives
The main reason for those low numbers at the beginning, was the fact, that there was huge pile of old paper based applications. So if you look at the total number of PR from 2015, and 2016 those are much higher (people that were invited or their application approved mostly with the quota before election).
From what I have understood so far, Conservatives are accusing Liberals of too chaotic immigration (they randomly invite anybody as long as he or she will have CRS; all that without any second thoughts if and how that person will manage to establish him or herself in Canada).
So Conservative approach might lead to either:
1. rising PNP quotas and significantly decrease FSW / FST / CEC quota. That would come from the logic, where provinces are already doing additional selection (occupations in demand, ties to the province, job offer...)
I doubt that it will go that way, as that would give too much power to provinces leading it backwards from the standardization, they are trying to achieve.
2. They can use Quebec approach with Areas of Training (especially where education and work experience should be consistent), in order to promote certain professions (not just single NOC).
This is more probable to happen. As such system will not leave out other professions completely, but it will put them in a heavy disadvantage.
I do not think that the old system with strict quotas for each profession would be acceptable anymore (such system was way to manual to handle - with the constant checking of each quota against checking the general yearly quota fulfillment).