Yes, I noticed this too. With the exception of some very highly skilled jobs such as those in medicine and IT, it is much easier to get an LMIA for lower skilled, low-paid jobs that Canadians simply don't want.
I think one of two things is happening. Either EE is simply not working the way CIC expected it would, or - and perhaps more likely - the government is saying it wants one thing when it actually wants another. It says it wants highly educated, language-proficient, adaptable newcomers, but is choosing those with lower language and education scores, many with with low-level jobs Canadians don't apply for. Perhaps it actually wants the workforce to take those jobs, but wants the appearance of being in the market to attract real talent to Canada. Or perhaps it simply chose the wrong system to accomplish its goals. I think time will tell. If the system is adjusted, then the goals were real and the system faulty at achieving them. If no changes are made, the government is not telling the truth about what it is looking for in new Canadians.
If Canada really wanted the people it said it wanted, wouldn't it have made sense to give, say, 250 points to those on open work permits for more than a year with permanent job offers, and 400 points to those on post-grad or NAFTA permits with permanent job offers, in addition to the 600 for the LMIAs?