Yes, but I think the point being made, (which I agree with), is that a huge amount of sites using WP, or another CMS, are updated rarely, and would be simpler,

Yes, but I think the point being made, (which I agree with), is that a huge amount of sites using WP, or another CMS, are updated rarely, and would be simpler, faster, and more secure if they were static sites instead. Also, there are a number of amazing static site generators out there.