I'm happy to. Express entry isn't actually NOC-based. It's not occupation-based. It balances different factors that have been shown to contribute to the longer-term success of economic immigrants. They include language ability, education and level of education, whether or not there's a sibling in Canada—there are extra points for that—work experience and then, of course, job offers. Depending on the type of job offer, there is a different number of points you can receive. This also actually manages a portion of the provincial nominee program. Provinces are able to use the express entry system to identify where there could be candidates who could fill particular job needs in those jurisdictions.
On February 19th, 2019. See this statement in context.